
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
Given a cyclic quadrilateral $ABCD$ with $\angle BAD = 80^\circ$ and $\angle ADC = 58^\circ$. The side $AB$ is extended through $B$ to a point $E$. Determine $\angle EBC$.
A) $56^\circ$  
B) $58^\circ$  
C) $60^\circ$  
D) $62^\circ$  
E) $64^\circ$

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