What Is the Primary Difference Between Encephalitis and Meningitis

What is the primary difference between encephalitis and meningitis?

A) encephalitis requires inflammation to be present in both the meninges of the brain and the spinal cord while meningitis requires inflammation to be present in either the meninges of the brain or the spinal cord
B) encephalitis is always caused by a spinal or cranial abscess while meningitis can be caused by several underlying conditions
C) meningitis is synonymous with myelitis
D) encephalitis requires inflammation in the brain tissue or spinal cord, while meningitis requires inflammation in the meninges of the brain or spinal cord