
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 a list of five-digit rising numbers (where each digit is larger than the one before it), there are $\binom{8}{5} = 56$ such numbers created by selecting digits from 1 to 8. When these numbers are arranged from smallest to largest, find out which one of the choices given below does not appear in the $42^{\text{nd}}$ number in the list.
A) 1
B) 3
C) 5
D) 6

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