Question

What did the priest Johann Tetzel do that prompted Martin Luther to take action?

Answer 1

A.Tetzel sold Bibles printed in Latin.
B.Tetzel accused Luther of heresy.
C.Tetzel challenged Luther to defend his 95 Theses in public.
D.Tetzel sold indulgences, promising buyers an assured entry into heaven.

Answer 2

I'd suggest your best bet would be to Google "Johann Tetzel." Once you have your search results, look for mention of Luther.

Answer 3

Off the top of my head, I'd go with the last one. Then, I'd look into it. wiki should be good enough.