
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 diagram shows three triangles which are formed by the five line segments \(A C D F, B C G, G D E, A B\), and \(E F\) so that \(A C = B C = C D = G D = D F = E F\). Also, \(\angle C A B = \angle E F D\). What is the size, in degrees, of \(\angle C A B\)?
A) 40
B) 45
C) 50
D) 55
E) 60

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