Please include an explanation. Thank you!

0/1 Question 5 You are on the west side of a river that is flowing due south is 2.5m/s. In still water, you can row your boat with a maximum speed of 4.5m/s. You wish to cross the river that is 500m wide and land exactly east of where you started. If you row at maximum speed, at what angle should you row? X a. 56 N of E b. 610 N of E c. 290 N of E d. 34 N of E