If circles x and y have the same area and circle x has a circumference of 12π, half of the radius of circle y is:
Choose the correct choice from the following answers.
A) 16 B) 8 C) 3 D) 2 E) 1

Rationale: "x be radius of circle x y be radius of circle y given : pi * x ^ 2 = pi * y ^ 2 also , 2 * pi * x = 12 * pi x = 6 thus y = 6 y / 2 = 3 ans : c"
Answer: C