
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]


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A certain school offers mathematics, physics, chemistry, and biology tutoring courses to promote the development of top talents. Now, four students, A, B, C, and D, want to sign up for tutoring courses. Due to limitations in energy and time, each person can only choose one tutoring course. The number of ways in which exactly two students can choose the mathematics tutoring course is ______.

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