
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 university intends to understand the intentions of its undergraduate students regarding participation in a certain social practice activity. It plans to use stratified sampling to draw a sample of 300 students from undergraduates across four grades. It is known that the ratio of the number of undergraduates in the first, second, third, and fourth grades is 4:5:5:6. Therefore, the number of students to be drawn from the first grade is \_\_\_\_\_\_.

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