Each of the following sentences is followed by four words or group of words. Fill in the blanks with the appropriate word or group of words.

Traffic problems in Bombay are as serious as in any other city in India and they are complicated by digging of roads by the corporation on this or that ____.

A. aspect

B. pretext

C. intention

D. instance

Please do not use chat terms. Example: avoid using "grt" instead of "great".