Before taking a history test, you hear a "Today in History" segment on the radio. One of the test questions covers the same topic as the radio segment, and you are easily able to recall the answer. This is most clearly an example of:

priming

Explanation:

this is an example of priming

d ) power this is the right answer

a mother eats twice as much to support her growing fetus

limiting sugar intake in a mother with gestational diabetes, switching from diving to swimming.   depending on whether the patient is normal weight, over weight or gain will differ depending on that.