
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
In a different experiment, a scientific constant $D$ is determined to be $9.71439$ with an error of at most $\pm 0.00289$. The goal is to determine the most accurate value for $D$, ensuring each digit announced is significant after rounding to that number of digits.
**A)** 9.7
**B)** 9.71
**C)** 9.72
**D)** 9.713
**E)** 9.717

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