
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
The angles of a hexagon are in arithmetic progression. One of the angles in degrees, must be:
- 120 degrees
- 108 degrees
- 100 degrees
- 90 degrees
- 72 degrees
A) 120
B) 108
C) 100
D) 90
E) 72

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