
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 store normally sells windows at $100 each. This week, the store is offering one free window for each purchase of three. Dave needs 11 windows and Doug needs 9 windows. Determine how much they would save by purchasing the windows together instead of separately.
A) $0$
B) $100$
C) $200$
D) $300$
E) $400$

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