Hi!
The correct option would be B. Brain.
The diencephalon is the major part of the forebrain. It is located between the telencephalon and the midbrain. The structures that compose it include: thalamus, the epithalamus, the subthalamus and the hypothalamus. The diencephalon is an essential vessel formed during embryogenesis , dervived from prosencephalon.
Hope this helps!
Answer:
A. They destroy antigens because they are a foreign object.
The answer is A.It releases spermicide into the uterus to keep sperm from fertilizing eggs. Hope this helps