
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
For how many positive integer values of $n$ is not only $\frac{n}{4}$ a three-digit whole number, but also $4n$ a four-digit whole number?
**A)** 525 **B)** 530 **C)** 1048 **D)** 212 **E)** 625

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