
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
Three workshops A, B, and C in a factory produce the same product, with quantities of $120$, $90$, and $60$ pieces respectively. To determine whether there are significant differences in product quality among them, a sample of size $n$ was taken using stratified sampling method for investigation. Among them, $4$ pieces were taken from the products of workshop C. Then, $n=$ _____ .

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