Scientists entered a bat cave and collected samples of fungus from a bat. During what step(s) in the scientific method might this occur? Select all that apply.



Photo by Dr. Kimberli Miller, courtesy USGS National Wildlife Health Center

Choose one or more:
A. testing
B. accepting, rejecting, or modifying a hypothesis
C. hypothesis/prediction
D. observation

A. testing

C. hypothesis/prediction
D. observation