
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 $\bigtriangleup ABC$, D is a point on side $\overline{AC}$ such that $\frac{BD}{DC} = 2$ and $\angle BCD$ measures $60^\circ$. What is the degree measure of $\angle ADB$?
A) 100°
B) 110°
C) 120°
D) 130°
E) 140°

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