
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
Given the digits $0, 3, 4, 7, 8$, place each one in exactly one of the boxes of this subtraction problem. Zero cannot be the leading digit of a number. What is the smallest difference that is possible?
\[\begin{tabular}[t]{cccc}  & \boxed{} & \boxed{} & \boxed{} \\ - & & \boxed{} & \boxed{} \\ \hline \end{tabular}\]
A) 298
B) 309
C) 330
D) 339

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