Which is the preferred site for a heelstick?

Which of the follow describes why verbal labels and visual metaphoric imagery aid the learning of complex motor skill? They:

A. Direct the performer's attention to the movements to be performed B. Increase the cognitive processing requirement for learning the skill C. Change an abstract array of movements to a more meaningful form D. Reduce the complexity of the skill that needs to be performed

The period after a woman delivers an infant, during which her body attempts to get back to normal, is known as ________. 

Fill in the blank(s) with the appropriate word(s).