Find the area of the quadrilateral of one of its diagonals is 22 cm and its off sets 9 cm and 6 cm?  Choose the correct choice from the following options.
A) 188 cm 2 B) 165 cm 2 C) 168 cm 2 D) 198 cm 2 E) 987 cm 2

Rationale: "1 / 2 * 22 ( 9 + 6 ) = 165 cm 2 answer : b"
Answer: B