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Transform the polar equation to an equation in rectangular coordinates. Then identify and graph the equation. r = 2 cos 0 ..... O A. O B. O c. OD. 8- 8- Q -8 - 8 -8 x2 + (y+ 1)2 =1; circle, radius 1, x2 + (y-1)2 =1; circle, radius 1, (x- 1)2 + y? = 1; circle, radius 1, (x + 1)2 + y?=1; circle, radius 1, center at (0, - 1) in rectangular center at (0,1) in rectangular center at (1,0) in rectangular coordinates center at ( - 1,0) in rectangular coordinates coordinates coordinates