Using Green's Theorem, compute the counterclockwise circulation of F around the closed curve C. 1) F = (x2 + y2)i + (x - y)j; C is the rectangle with vertices at (0, 0), (3, 0), (3, 9), and (0, 9) 1) A) 0 B) -216 C) 270 D) 216\f3) F = (x - y)i + (x + y)j; C is the triangle with vertices at (0, 0), (3, 0), and (0, 10) 3) A) 0 B) 60 C) 300 D) 30