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. She studied the envelope, trying to (A)decipher/(B)decimate the handwriting. 
2. As punishment, the (A)corporal/(B)corpse was demoted to private.
3.They announced that a cold (A)waive(B)wave would come soon.