To find the circumference of a circle, you can use the formula:
\[ C = \pi \times d \]
where \( C \) is the circumference and \( d \) is the diameter.
Given that the diameter of the slice of kiwi is 2.75 inches, we can calculate the circumference as follows:
\[ C = \pi \times 2.75 \]
Using \( \pi \approx 3.14 \):
\[ C \approx 3.14 \times 2.75 \approx 8.635 \]
Therefore, the closest option to the calculated circumference is:
D. 8.635 inches.