The harvest of grapes in the local valleys decreased in 1990 for the third ... ...

The harvest of grapes in the local valleys decreased in 1990 for the third straight year but were still at a robust level.
(A) The harvest of grapes in the local valleys decreased in 1990 for the third straight year but were
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in 25 Minute Writing Test