A Man at Point a Directs His Rowboat Due North

Multiple Choice

A man at point A directs his rowboat due north toward point B, straight across a river of width 100 m. The river current is due east. The man starts across, rowing steadily at 0.75 m/s and reaches the other side of the river at point C, 150 m downstream from his starting point.
-While the man is crossing the river, what is his velocity relative to the shore?

A) 1.35 m/s, 34° north of east
B) 2.00 m/s, 56° north of east
C) 1.74 m/s, 34° north of east
D) 2.11 m/s, 34° north of east
E) 2.50 m/s, 42° north of east