
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
Aarav, Bella, Carlos, Diana, Evan, Fiona, and George are members of a social media platform. They are each others' only friends on this network, and every individual has the same number of friends, but not all of them are friends with each other. How many different configurations can these friendships take?
A) 210
B) 252
C) 280
D) 330
E) 400

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