An inherited,progressive disease that causes degeneration of brain cells and which affects Jewish children is:

A) Parkinson.
B) Tay-Sachs.
C) multiple sclerosis.
D) epilepsy.

Tay-Sachs disease is an inherited, progressive disease that affects Jewish children specifically. It causes degeneration of brain cells and can result in blindness, deafness, and loss of motor skills. Parkinson's disease, multiple sclerosis, and epilepsy are all neurological disorders, but they do not specifically affect Jewish children or have a genetic link to Jewish ancestry.