Sentence Correction

Wary of potential predators, including humans, and prone to high levels of anxiety, Australian wildlife biologists must practice patience when attempting the spot the platypus.

(A) Australian wildlife biologists must practice patience when attempting the spot the platypus

(B) Australian wildlife biologists must practice patiently when they attempt to spot the platypus

(C) the platypus can only be spotted by Australian wildlife biologists who practice patience

(D) biologists of Australian wildlife must practice patiently when attempting the spot the platypus

(E) the platypus is most often spotted by Australian wildlife biologists willing to practice patience

OA E

Source: Princeton Review