Select the segment of the sentence that contains a grammatical error. If there is no error, mark 'No error'.
Each of the survivors of the Tsunami have been offered free psychological consultation to ease the trauma, by some of the top consultants

Options

A. A.Each of the survivors of the Tsunami have been offered
B. B.trauma, by some of the top consultants
C. C.free psychological consultation to ease the
D. D.No Error