When a mother bear nurses a cub, she gives the cub what it needs for growth and development in the form of milk or food, which is the cub's source of a) comfort. b) energy. c) oxygen. d) vitamins.

Milk and food would give the cub energy. (I believe)

the answer is :

the correct answer is anaphylaxis.

anaphylaxis is a condition caused by insect bites, foods, medications, manifested by tongue swelling, shortness of breath, vomiting, low blood pressure. it sometimes may occur without an obvious reason. it is treated with epinephrine injection.other tretments include antihistamines and steroids,