The statement that support the claim that people are generally good without enforcement is this: MANY PEOPLE ENJOY USING THE HONOR SYSTEM. The correct option is D. An honor system is a system of payment which relies solely on the honesty of the people involved. An honor system does not have strictly enforced rules that govern it.
In order to answer this question, one must think about the time period. This is long before women had jobs outside of the home. They were expected to care for the home and the children, take care of the needs of their husband, and be seen, not heard. Keeping those characteristics in mind and reading through all the answers, the only logical answer would be the first one: In the 1800s, women were expected to be submissive to men (do what they are told to do by the man), and Nora was discovering that Helmer has taken advantage of that.
In Afghanistan, "bacha posh" directly translates to "dressed like a boy" for children who are born female. The families may choose to raise their daughters as bacha posh to ensure safety and a better quality of life.
During their childhood, bacha poshs are allowed movement to run errands, escort sisters, go to school and get an education, and even play sports. The parents give much freedom to bacha poshs. Once she reaches puberty she is expected to switch to a conservative women's lifestyle; to marry and have children. The parents behavior towards their daughter during and after the bacha posh phase is contradictory - the relationship towards their daughter is the complete opposite afterwards.