This figure refers to specific demographic statistics regarding marital status in the United States. Such data is typically derived from official census reports, which track changes in household composition and marital trends over time to understand shifts in social structures and family life.

The figure of 148.72 million is a specific statistical data point often cited in historical demographic reports for a particular nation. Identifying the correct census year is essential for accurate longitudinal analysis of population growth trends and for understanding the specific socio-economic context of the country during that period of time.

Demographic data from the early 1970s in England and Wales indicates that the average age of women at their first marriage was approximately 22.6 years. This period reflected social norms where marriage occurred relatively early in adulthood compared to contemporary trends, where the average age of first marriage has significantly increased due to factors such as higher education participation, career focus, and changing social attitudes toward cohabitation.

Population composition refers to the structure of a population in terms of age, sex, and other demographic characteristics. Both the sex ratio (the proportion of males to females) and the population pyramid (a graphical representation of age-sex distribution) are essential tools used by demographers to analyze and visualize these characteristics.

Mechanical solidarity refers to the social integration of members of a society who have common values and beliefs. This type of solidarity is typical of traditional, small-scale societies where individuals perform similar tasks and share a strong collective consciousness, leading to high social cohesion.

Émile Durkheim published 'Suicide: A Study in Sociology' in 1897. This work is considered a landmark in sociology because it demonstrated that suicide, often viewed as a deeply personal act, is influenced by social forces such as integration and regulation.

Durkheim defined anomic suicide as resulting from a state of 'anomie' or normlessness, where social regulation is insufficient. While the provided option B mentions 'lack of social integration,' anomie specifically refers to a breakdown in social norms and expectations, leading to confusion and despair.

Anomie, a concept popularized by Émile Durkheim, refers to a state of normlessness or a breakdown in social standards. It occurs during periods of rapid social change or instability, where existing norms lose their influence over individual behavior, leading to confusion, uncertainty, and a lack of clear social guidance.

Durkheim defined 'social facts' as ways of acting, thinking, and feeling that are external to the individual and exert coercive power over them. While Durkheim did not focus exclusively on racism, his framework treats widespread social patterns that influence individual behavior as social facts, which exist independently of any single person.

Émile Durkheim introduced the concept of social solidarity in his work 'The Division of Labour in Society'. He distinguished between mechanical solidarity, found in traditional societies with low division of labor, and organic solidarity, which characterizes modern, complex societies where individuals are interdependent due to specialized roles.