
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 bag contains an equal number of blue, red, and green marbles. If the number of green marbles is doubled while the number of blue and red marbles remains the same, what fraction of the marbles will be green?
**A)** $\frac{1}{2}$  
**B)** $\frac{2}{5}$  
**C)** $\frac{1}{3}$  
**D)** $\frac{3}{5}$

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