
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 $120$-foot pool has swimmers starting from opposite ends, where one swims at a rate of $4$ feet per second and the other at $3$ feet per second. They swim continuously for $15$ minutes, but the faster swimmer takes a $30$-second rest after each round trip. How many times do they pass each other?
A) 15
B) 16
C) 17
D) 18
E) 19

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