
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
Which of the following is equivalent to \(\sqrt{\frac{x}{1-\frac{x-4}{x}}}\) when \( x < 0 \)?
A) \( -x \)  
B) \( \frac{-x}{2} \)  
C) \( \frac{x}{2} \)  
D) \( \sqrt{\frac{x}{4}} \)  
E) \( x\sqrt{-1} \)

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