Thomson Brings Up the Good Samaritan and the Minimally Decent

Thomson brings up the Good Samaritan and the Minimally Decent Samaritan to make which of the following points?

A) That nowhere is the minimum expectation of a decent person that they be willing to give up 9 months of their life for the sake of another's life
B) That having an abortion might mean one is failing to be a Minimally Decent Samaritan, but this isn't morally wrong
C) That we have a duty to rescue, and so mothers also have a duty to refrain from abortion
D) That we should only legally require people to be Minimally Decent Samaritans, not Good Samaritans