Answer: Option (b) is the correct answer.
Explanation:
Center punch is a tool which helps to mark a point where we intend to punch a hole in the material without slipping in any direction.
With the help of this mark, it provides a resting place to the drill so that while drilling the hole will be pointed in the right direction.
Thus, we can conclude that out of the given options center punch is the tool used to mark the spot where a hole is to be drilled in a piece of metal.
