Final answer:
The ethmoid bone features both the cribriform plate and the crista galli, making it the correct answer.
Step-by-step explanation:
The bone that has both the cribriform plate and the crista galli is the ethmoid bone. The cribriform plate is a part of the ethmoid bone that contains small openings called olfactory foramina, which allow nerve branches from the olfactory areas of the nasal cavity to enter the brain. The crista galli is a small upward projection at the midline of this bone which acts as an attachment point for one of the brain's covering layers. Therefore, the answer to the question is E) ethmoid bone.