Which choice provides the best evidence for the
conclusion that the streams used by Reznick’s team
in their real-world study were not entirely free of
predators?
A) Lines 14-16 ("A lucky . . . waters")
B) Lines 16-20 ("As you . . . them")
C) Lines 46-52 ("This . . . lifetimes")
D) Lines 57-59 ("Although . . . cichlids")