
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 project requires 12 man-days to finish. If 4 men are originally planned to work on it with an efficiency rate of 1.5 man-days per man per day, how long will it take for 6 men with an efficiency rate of 2.0 man-days per man per day to complete the same project?
A) 0.5 days
B) 1 day
C) 1.5 days
D) 2 days

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