Nourishing food is a necessity both for a pregnant mother and a baby.

Undercooked food can also contain harmful bacteria. It is important to make sure that all food is cooked to the proper temperature to kill any harmful bacteria.

Heavy food can be difficult for the mother to digest, especially during the later stages of pregnancy. It is important to choose foods that are easy to digest and that will not cause indigestion or heartburn.

In conclusion, the correct answer is A. unhygienic. It is important to make sure that all food is cooked properly and that it is stored in a clean environment.