After observing a moth that is camouflaged against dark-colored bark, a scientist asks a question. The scientist discovers that the question has already been asked and answered by several investigations. What should the scientist do?
Answer
A
The scientist should test the question anyway.
B
The scientist should broaden the scope of the question.
C
The scientist should come up with a new way to test the question.
D
The scientist should revise the question to address a gap in knowledge.