
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
The diagonal of square $I$ is $2(a+b)$. Find the area of square $II$ if it has three times the area of square $I$.
A) $3(a+b)^2$
B) $4(a+b)^2$
C) $5(a+b)^2$
D) $6(a+b)^2$
E) $8(a+b)^2$

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