
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 school has 120 students and 6 teachers. Each teacher teaches one class, and each student takes one class during the first period. The class enrollments are 60, 30, 20, 5, 3, and 2. Calculate the difference between the average number of students per class from a teacher's perspective and from a student's perspective.
A) -21.148
B) -15
C) 0
D) 15
E) 21.148

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