
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 $\triangle ABC$, with $D$ on $AC$ and $F$ on $BC$, given $AB \perp AC$, $AF \perp BC$, and $BD = DF = FC = 1$. If also $D$ is the midpoint of $AC$, find the length of $AC$.
A) 1
B) $\sqrt{2}$
C) $\sqrt{3}$
D) 2
E) $\sqrt[3]{4}$

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