
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
A highway strip that is 40 feet wide and stretches for one mile is temporarily closed. Initially, Robert decides to ride his bike in large semicircles across the strip. After 528 feet, he changes his strategy and starts riding in semicircles that are only half the original radius, still just touching either edge of the roadway. Given Robert rides at an average speed of 5 miles per hour, how many hours will it take him to cover the entire one-mile stretch?
A) $\frac{\pi}{10}$ hours
B) $\frac{\pi}{5}$ hours
C) $\pi$ hours
D) $\frac{5\pi}{2}$ hours

Present the answer in LaTex format: \boxed{Your answer}
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