Meerkat “sentinels,” so-called because they watch for predators while ... ...

Which one of the following is a questionable reasoning technique employed in the argument?
(A) appealing to evidence that tends to undermine rather than support the argument’s conclusion
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in June 2012 LSAT (PT66): Logical Reasoning B