The polar equation of the graph is either r = a + b cos ? or r = a + b sin ?, a > 0, b > 0. Match the graph to one of the equations. 
A. r = 3 + 2 cos ?
B. r = 2 + 3 sin ?
C. r = 3 + 2 sin ?
D. r = 2 + 3 cos ?
Answer: A
Mathematics
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