A man can row 9 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and black. What is the total distance traveled by the man?  Choose the correct choice from the following answers:
A) 5.98 B) 9.98 C) 9.06 D) 9.87 E) 9.82

Rationale: "m = 9 s = 1.2 ds = 7.2 us = 10.8 x / 10.8 + x / 7.8 = 1 x = 4.53 d = 4.53 * 2 = 9.06 answer : c"
Answer: C