PT 38 S4 Q24

Most land-dwelling vertebrates have rotating limbs terminating in digits, ... ...

The statements above, if true, most strongly support which one of the following?
(A) Many anatomical characteristics common to most land animals represent a disadvantage for survival underwater.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Practice Set: "Drawing Conclusions" Questions, Set 4 - Difficult/Uncommon Mix (25Q)