_______________ is when a mother decides it is time for her child to stop breastfeeding

Rewards that are based on how well we perform a task.

A. extrinsic motivation B. task-contingent rewards C. performance contingent rewards D. ingratiation

For in vitro fertilization, or IVF, what is the current rate of success of IVF in women aged 38–40?

a. 4% b. 10% c. 18% d. 40%