UPSC 2014 CDS I English Paper

In the context of the given sentence, present perfect form ofthe tense should be used as it is used to express an action thatoccurred or completed at some point in the past. This tense expresses an idea of completion or occurrence of an action in past without giving an idea about the exact time of its occurrence. Hence, ‘are spending’ must be replaced with ‘have spent’. Thus, option (c) is correct