PT 58 S4 Q23

Eight large craters run in a long straight line across ageographical region. ... ...

Which one of the following statements, if true, would most strengthen the argument?
(A) A similar but shorter line of craters that are all the same age is known to have been caused by volcanic activity.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Complete Section: LR-B, Sept. '09 LSAT (PT 58 Sec. 4)