160k views
0 votes
A. Although many theories​ exist, the reason for Amelia​ Earhart's disappearance remained a mystery. B. Although many theories​ exist, the reason for Amelia​ Earhart's disappearance remains a mystery. C. Although many theories​ exist, the reason for Amelia​ Earhart's disappearance is remaining a mystery. D. Although many theories are​ existing, the reason for Amelia​ Earhart's disappearance remains a mystery.

1 Answer

3 votes
If you’re looking for the best worded answer, go for B.
User OlegYch
by
8.1k points