
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
Eight individuals, namely Anna, Bob, Carlos, Diana, Evan, Fiona, George, and Hilda are part of an online community. Each individual has the same number of friends within this group, and each pair of friends is mutual. No one has an internet friend outside this group. Determine how many different ways can they form their friendship groups?
A) 105
B) 210
C) 315
D) 420
E) 525

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