
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
Isaac and his six siblings have ages 2, 4, 6, 8, 10, 12, and 14. One afternoon, two of his siblings whose ages sum to 18 went to a park, two siblings whose total age is less than or equal to 14 went to play soccer, and Isaac with the 4-year-old stayed home. How old is Isaac?
**A)** 8
**B)** 10
**C)** 12
**D)** 14
**E)** 6

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