Answer:
Option B, meningitis
Step-by-step explanation:
The three layers of membrane covering the brain and spinal cord are known as the meninges. Inflammation, often denoted by the suffix -itis, of these membranes would then be called meningitis, option B.
The prefix encephal- means brain, so encephalitis is inflammation of the brain. The prefix blephar- means eyelids, so blepharitis is inflammation of the eyelids. Poly- means many, neur- means nerves; polyneuritis is inflammation of the peripheral nerves, referring to those leading to the hands and feet.
Meningitis is defined as inflammation of the membranes covering the brain and spinal cord, option B.