
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
Edgar started selling widgets with a different plan. On his first day, he sold 2 widgets. On each following day, he sold 3 more widgets than the previous day. Meanwhile, his colleague, Clara, sold 4 widgets on her first day and increased her sales by 4 widgets each day thereafter. How many widgets in total had Edgar and Clara sold together after 15 days?
A) 750
B) 800
C) 810
D) 820
E) 830

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