Two analogies that relate actions to the tools used to perform the action is given in the form "A : B. C : ?". "A : B" relates action A to tool B. Your task is to replace the question mark (?) with the appropriate tool for the given action C, following the "A : B" relation.
One example is below.
Q: eat : fork. cook : ?
A: pan
Rationale: The given analogy relates actions to the tools used to perform them. A fork can be used to eat. To cook, a pan can be used.
Q: spread : knife. scrub : ?
A:
brush