Directions: In the following question there are sentences that form a paragraph. Identify the sentence(s) or part(s) of sentence(s) that is/are correct in terms of grammar and usage (including spelling, punctuation and logical consistency). Then, choose the most appropriate option.

A. The manager and me had to travel

B. a lot to promote our newly designed product.

C. You had better to do it.

D. All of them helped each other

E. when the earthquake devastated the town.