A neuroanatomist destroyed a dog's reticular formation to determine its function. Of the following, which is the most likely result? The dog:

A) could no longer hear.
B) could no longer see.
C) lapsed into a complete and irreversible coma.
D) became hyper alert and no longer slept normally.

Reticular Formation

A complex network of nerve pathways in the brainstem that plays a key role in controlling arousal, attention, and sleeping patterns.

Irreversible Coma

A medical condition characterized by a deep state of unconsciousness from which the patient cannot be awakened, with no chance of recovery.

Hyper Alert

A heightened state of awareness, often with an excessive attention to potential threats or dangers.