The purpose of biosonar systems is to determine the distance, velocity and location, and even identity perhaps, of things moving underwater.

The purpose of biosonar systems is to determine the distance, velocity and location, and even identity perhaps, of things moving underwater.
A . velocity and location, and even identity perhaps, of
B . velocity, location, even perhaps the identity of
C . velocity and locate, even perhaps identify
D . velocity, locate and perhaps even identify
E . velocity, and location―and perhaps even the identity―of

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Answer: E