
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
Tom, Dick, Harry, and Jack started out on a 150-mile journey. Tom, Harry, and Jack went by automobile at the rate of 30 mph, while Dick walked at the rate of 4 mph. After a certain distance, Harry and Jack got off and walked at 3 mph, while Tom went back to pick up Dick and got him to the destination at the same time that Harry and Jack arrived. The number of hours required for the trip was:
A) 28 hours
B) 30 hours
C) 32 hours
D) 34 hours

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