
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
A piece of graph paper is folded once so that \( (1,3) \) is matched with \( (5,1) \), and then \( (8,4) \) is matched with \( (m, n) \). Determine \( m + n \).
A) \( 10.0 \)
B) \( 10.67 \)
C) \( 11.0 \)
D) \( 12.0 \)

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