Question

in how to observe morals and manners, harriet martineau critiqued the institution of marriage. she argued that this institution was

perpetuating social class stratification.

reinforcing heterosexuality.

based on an assumption that men are inferior.

based on an assumption that women are inferior.

Explanation:

Harriet Martineau, in her work, critiqued marriage as an institution that was based on the assumption of women's inferiority. The other options: perpetuating social class stratification is not her main critique of marriage here, reinforcing heterosexuality is not the focus, and the assumption of men being inferior is incorrect as the institution of marriage in that context was patriarchal, assuming women's inferiority.

Answer:

D. based on an assumption that women are inferior.