To calculate the circumference of a circle, we can use the formula:
\[ \text{Circumference} = \pi \times \text{Diameter} \]
Given that the diameter of the slice of kiwi is 2.75 inches, we can substitute this value into the formula:
\[ \text{Circumference} = \pi \times 2.75 \approx 3.14 \times 2.75 \]
Calculating that gives:
\[ \text{Circumference} \approx 3.14 \times 2.75 \approx 8.635 \text{ inches} \]
Among the provided options, the closest value to the calculated circumference of approximately 8.635 inches is:
D. 8.635 inches.