Read each sentence to find out whether there is any grammatical error in it. The error if any, will be in one part of the sentence, the letter of that part is the answer. If there is no error, mark ( e ). (Ignore errors of punctuation, if any)
In the first two months of this fiscal, tractor sales has seen (a)/ a drop of about five percent (b)/ however. the industry is watiting for the monsoon (c) to really arrive at a firm conclusion about growth prospects for the current year. (d)/ No error (e)

Answer

a

Explanation

Here subject (tractor sales) is plural. Hence, …… tractor sales have seen …… should be used.