Which of These Statements Supports the Notion That Maternal Instinct

Which of these statements supports the notion that maternal instinct is a social fallacy?

A) Maternity is always known, while paternity is potentially contestable.
B) The biological basis of motherhood begins with carrying and giving birth to a child.
C) Women feel a drive to procreate and nurture above and beyond what is felt by men.
D) Women employ a number of different techniques to mitigate, delay, or alter motherhood, including contraception, nannies, extended relatives, and more.