N to n
The 'response' group
These nouns refer to something that is said or done in response to something.
The answer to that question is yes.
To date there has been no reply to these letters.
The move was seen as a response to pressure from China, which opposes full democracy here.
In the case of reaction and response, the preposition to is sometimes followed by an '-ing' clause.
answer counterblast reaction rebuttal reply response riposte
The vets said it was a nervous reaction to being moved away from her usual environment.