Q.) A river flows with a speed more than the maximum speed with which a person can swim in still water. He intends to cross the river by the shortest possible path (i.e., he wants to reach the point on the opposite bank which is directly opposite to the starting point). Which of the following is correct?
[A]He should start normal to the river bank.
[B]He should start in such a way that he moves normal to the bank, relative to the bank.
[C]He should start in a particular (calculated) direction making an obtuse angle with the direction of the water current.
