A ring has an inner circumference of 7 centimeters. If the ring's inner circumference can vary between 6 centimeters and 7.5 centimeters, how can the radius vary? Round your answer to five decimal places.
?
A. Radius can vary between 3.64756 centimeters and 5.69932 centimeters.
B. Radius can vary between 1.38198 centimeters and 1.54510 centimeters.
C. Radius can vary between 0.95493 centimeter and 1.19366 centimeters.
D. Radius can vary between 1.90986 centimeters and 2.38732 centimeters.
E. Radius can vary between 0.11408 centimeter and 1.61408 centimeters.
Answer: C
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