The answer is C. Mortality. =)
I dislike someone who is weak.
I have answered this question once before, here is the answer from that question: Elisa "cries like an old woman" because she is absolutely crushed because she realizes that she has been duped by the tinker and that he was not interested in her chrysanthemums at all. He had only pretended to be interested in Elisa talking about them in order to get some business from her (some pots to mend). What had been an awakening of emotions for Elisa was now a huge disappointment. Elisa realizes that she simply cannot be anyone different from who she is on her little farm with her husband. She is "trapped" there and will never be able to get her husband to see the aesthetic beauty of her flowers that she loves so much.
The most efficient form of childcare would be to invest in a good day care center. While cost would be the main problem, the pros outweigh the cons. In daycare centers their are children of many different personalities, your child being around these personalities helps develop their social skills. Another reason would be rules, while rules are placed everywhere, daycare centers specifically for children focus on developing skills for many things like following rules, sharing, effective communication skills, potty training, and the list exceeds. To help your child get a early start dont give them to a nanny from 9-5, let them explore their own personalities surrounded by kids their age.
It is quite possible that Daniel Defoe's own childhood in relative poverty and hardship played a major role in his ability to portray this kind of lifestyle so accurately.