
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 squares is made of identical square tiles where each square has one tile more on each side than the previous square. Calculate:
1. How many more tiles does the ninth square require than the eighth?
2. How many more tiles does the tenth square require than the ninth?
A) 16 tiles and 18 tiles
B) 17 tiles and 19 tiles
C) 18 tiles and 20 tiles
D) 19 tiles and 21 tiles
E) 20 tiles and 22 tiles

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