
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
At a school event, a group of students pairs up for photo sessions. The first student poses with 7 classmates, the next student poses with 8 classmates, continuing in this manner, with each subsequent student posing with one more classmate than the previous. The last student in line poses with all the classmates. Let $s$ represent the number of students. How many students were posing only with 6 classmates?
**A) $0$ students**
B) $1$ student
C) $2$ students
D) $3$ students

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