In Comparing the Reactions of People with Panic Disorder to Nonpanic

In comparing the reactions of people with panic disorder to nonpanic control subjects when faced with certain biological challenges such as infusion of sodium lactate or manipulation of carbon dioxide levels in the blood,it was found that ________.

A) neither the panic disorder subjects nor the nonpanic control subjects experienced panicky symptoms
B) the panic disorder subjects experienced more panicky symptoms than did the nonpanic control subjects
C) the nonpanic control subjects experienced more panicky symptoms than did the panic disorder subjects
D) both the panic disorder subjects and the nonpanic controls experienced similarly high levels of panicky symptoms