Answer: option C) Pons
Explanation:
Pons, or better still, the pons Varolii is a band of nerve fibers located within the brain stem. While, the brain stem is known to connect the spinal cord(Hind brain) to the fore brain
Thus, Pons extends through the hindbrain, midbrain, and forebrain.
The basic unit of structure and function is cells
9:3:3:1 would be the expected phenotypic ratio
A is the answer hope i helped