Nina is suffering from protein deficiency. which of the following should she have in her diet?
a. rice
b. bean
c. carrot
d. lettuce

Protein deficiency is caused by the small amount of protein you eat to maintain normal body function. Not consuming enough protein can cause muscle cramping, weakness and soreness and hair loss too. Beans are the best to eat whenever it is possible. If you're vegan, then 2 cups of carrots are the best too.

So choice B