
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
If $\angle \text{CBD}$ is a right angle, then with the total sum of angles around point B given as $180^\circ$ which includes $\angle \text{ABC}$, $\angle \text{ABD}$, and $\angle \text{CBD}$, and if $\angle \text{ABD}$ is $60^\circ$, then the measure of $\angle \text{ABC}$ is approximately
A) $20^\circ$
B) $30^\circ$
C) $40^\circ$
D) $50^\circ$
E) $70^\circ$

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