Answer:
A.) The brain
Step-by-step explanation:
Encephalitis is an inflammation of the brain, it can be caused by an infection (infectious encephalitis) or by problems in the immune system.
Infectious encephalitis is the most common form of this disease and is caused by several viruses, for example, the herpes virus.
This disease starts with symptoms similar to a flue or headache, after some days serious symptoms arrive like drowsiness or loss of consciousness, behavioral changes (speech, sight, etc.) seizures, among others.