
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 $A$, $B$, and $C$ are different digits, then determine the largest possible $3-$digit sum for:
$\begin{tabular}{ccc} A & A & B \\  & C & A \\ + & & B \\ \hline \end{tabular}$
A) 978
B) 976
C) 987
D) 974

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