Read the sentence to find out if there is any error in it. The error if any, will be in one part of the sentence. The number of that part will be the answer. If there is no error, then the answer is (E). Ignore errors of punctuations if any.

Both Samuel and Jackson could (A)/ not has chosen a better (B)/period to go on (C)/vacation to Hawaii. (D)/ No error (E)