Jennifer Craves a Bowl of Ice Cream Every Night While

Jennifer craves a bowl of ice cream every night while pregnant and has heard that this craving may be due to her body's need for additional calcium.What would you tell her? 

A)  Cravings usually suggest the body's need for particular nutrient in the food being craved. 
B)  Cravings usually suggest the body's need for additional protein. 
C)  Cravings do not seem to indicate a physiological need for a nutrient 
D)  Cravings usually suggest the body's need for additional energy due to rapid growth spurts in the fetus. 
E)  Cravings suggest physiological need for a nutrient and should be given in to.