For New Delhi, it is time to re-examine its Pakistan policy and reduce the suspicion that it is trying to torpedo the talks.

The correct answer is: reduce.

The word “reduce” means to make something smaller or less in amount, number, or degree. In this context, it means that New Delhi should take steps to make its Pakistan policy less suspicious. This could be done by being more transparent about its intentions, by engaging in more dialogue with Pakistan, and by taking steps to reduce tensions between the two countries.

The other options are incorrect because they do not accurately reflect the meaning of the sentence. The word “attack” means to start a

fight or to use violence against someone. The word “quiet” means to make something less noisy or to make someone less excited. The word “weaken” means to make something less strong or powerful. The word “refute” means to prove that something is not true.

In conclusion, the correct answer is “reduce” because it is the only option that accurately reflects the meaning of the sentence.