Final answer:
The distance traveled by a unicycle when the wheel makes 5 full rotations is 5 times the circumference.
Step-by-step explanation:
To find the distance traveled by a unicycle when the wheel makes 5 full rotations, we need to know the circumference of the wheel. The circumference is the distance around the wheel. It can be calculated using the formula C = 2πr, where C is the circumference and r is the radius of the wheel. Since the question does not provide the radius, we cannot determine the exact distance. However, we can still answer the question using the provided options.
If we assume that the circumference of the wheel is C and each full rotation covers C distance, then 5 full rotations would cover a distance of 5C. So, the answer would be 5 times the circumference (option a).