Which Factor Are Natural Scientists Focusing on When They Build

Which factor are natural scientists focusing on when they build new instruments to search in previously unexplored places for evidence of physical mechanisms that may or may not exist?

A) How to spend grant money before the budget year ends.
B) How to impress their colleagues.
C) How to generate new knowledge.
D) How to win a Nobel prize.
E) How to show that empirical reasoning is superior to comparative reasoning.