
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
Calculate the value of $500 \times 3986 \times 0.3986 \times 20$.
A) \( 3986 \times 10^4 \)
B) \( (3986)^2 \)
C) \( 1993 \times 3986 \)
D) \( 500 \times 20 \times 3986 \)
E) \( 1.993 \times 10^4 \)

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