
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
In March 2014, to survey teachers' understanding of the second session of the 12th National People's Congress, Anqing City planned to use stratified sampling to select 60 teachers from A, B, and C, three different middle schools. It is known that there are 180, 270, and 90 teachers in schools A, B, and C, respectively. Calculate the number of people that should be selected from school C.

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