
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
When simplified, the fourth term in the expansion of \((\frac{\sqrt{x}}{a}-\frac{a}{x^{3/2}})^8\) is:
A) \(\frac{56}{a^2 x^2}\)
B) \(-\frac{56}{a^2 x^2}\)
C) \(\frac{56}{a x}\)
D) \(-\frac{56}{a x}\)
E) \(\frac{56}{x^2}\)

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