In the question given below, three sentences are given, each of which has two words highlighted in bold. Choose the word in each sentence that fits appropriately in the context, and select the right option.

1. He cannot (A)refuse/(B)defuse if you ask politely.
2. Train (A)fair/(B)fare increases of 5% are envisaged for the next year.
3. He sent the 400-page (A)manuscript/(B)materialist to his publisher.