
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 community has six different committees. Each member of the community is supposed to be in exactly two committees, and each pair of committees must have exactly one unique member. Determine how many members are there in the community.
A) 10
B) 12
C) 15
D) 18

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