The bulb! I hope this helps :)
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:
This is due to the property of contractility.
