Previous Year Questions

The blank is followed by the connector 'but' which is used to indicate contrast. So, the fact that our emotional response decreases over time can be contrasted with the fact that it is high or powerful in the beginning. According to this, only option a) fits in the sentence contextually. 'Emotional response' is a singular subject and must be followed by a singular verb. According to this, options b) and c) are eliminated because 'are' is a plural verb. Option e) is irrelevant to the context of the sentence. Option d) is eliminated because no comparison is being carried out in the sentence. Hence, a) is the correct answer.