Critical Reasoning

The migratory paths of the California gray whale and the Pacific humpback now cross at a point roughly two thousand miles northeast of Hawaii, due to human intrusion into the Pacific Ocean along the coast of Oregon. This meeting allows scientists to gather previously unobtainable data about the communication abilities of both of these species, which normally would not come into contact with each other.

Which one of the following statements, if true, would best explain why the situation described above will allow scientists to gather new data?

A. The crossing of the migratory paths of these species has not occurred since records of such data have been kept.
B. The migratory paths followed by the two species are not constant over time.
C. Upon coming into contact with whale of another species, whales alter the pitch of their
"voices" in an attempt to find a common frequency.
D. A whale species need not come into contact with another species to display its ability to communicate.
E. Because it stays in the deep waters of the northern Pacific for ten months out of the year, the Pacific humpback whale has not been extensively studied

OA is C
Why would C be correct what about option E. Can an Expert come to an aid here?