
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
In the diagram all the angles marked $\bullet$ are equal in size to the angle marked \( x^\circ \). What is the value of \( x \)? 

A) 100  
B) 105  
C) 110  
D) 115  
E) 120

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