
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
Last summer in Forest Pond, $35\%$ of the birds were geese, $20\%$ were swans, $15\%$ were herons, and $30\%$ were ducks. What percent of the birds that were not swans were geese?
A) 35%
B) 40%
C) 43.75%
D) 50%
E) 60%

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