Shown Below Is the Formula for the Antiinflammatory Drug Called $\infty$

Multiple Choice

Shown below is the formula for the antiinflammatory drug called prednisone.What is a correct systematic name for prednisone?

A) 17 $\infty$ ,21-Dihydroxypregna-1,4-diene-3,11,20-trione
B) 17 $\beta$ ,21-Dihydroxypregna-1,4-diene-3,11,20-trione
C) 17 $\infty$ ,19-Dihydroxypregna-1,4-diene-3,11,20-trione
D) 17 $\beta$ ,19-Dihydroxypregna-1,4-diene-3,11,20-trione
E) 17 $\infty$ ,21-Dihydroandrostan-1,4-diene-3,11,20-trione