
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
Initially, one-third of the people in a room left, and afterwards, one-quarter of those who were left started to dance. Then, six more people entered the room, none of whom danced. At this point, there were 15 people who were not dancing. Determine the original number of people in the room.
A) 18
B) 24
C) 27
D) 30
E) 36

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