
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 fundraising event, a group initially composed of 50% girls. During the event, five girls leave, and five boys arrive, making only 40% of the group girls. Find the initial number of girls.
**A) 20**  
**B) 22**  
**C) 25**  
**D) 30**  
**E) 35**

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