PT 62 S4 Q4

Paleontologists recently excavated two correspondingsets of dinosaur tracks, ... ...

Which one of the following most accurately describes the role played in the argument by the statement that the predatory dinosaur was following the grazing dinosaur and had matched its stride?
(A) It helps establish the scientific importance of the argument's overall conclusion, but is not offered as evidence for that conclusion.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Complete Section: LR-B, Dec. '10 LSAT (PT 62 Sec. 4)