
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 sequence of square designs is made using identical square tiles where each square's side is two tiles longer than the previous one. How many more tiles does the ninth square require than the eighth?
A) 64
B) 66
C) 68
D) 70
E) 72

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