A Key Distinction Is That Parkinson's Disease ________, Whereas Huntington's

A key distinction is that Parkinson's disease ________, whereas Huntington's disease ________.

A) symptoms can be cured with drug treatment or surgery; symptoms can be treated with drugs
B) usually occurs in the twenties and thirties; almost always occurs in the fifties and sixties
C) is characterized by a poverty of movement; is characterized by uncontrollable ones
D) is a hereditary disorder; does not usually have genetic origins
E) symptoms cannot be treated; symptoms can be cured with drug treatment or surgery