To determine which term best describes the distance around a circle, let's review the definitions of each option:
- Diameter: This is a straight line passing from one side of the circle to the other, through the center.
- Radius: This is the distance from the center of the circle to any point on its perimeter.
- Circumference: This is the total distance around the circle.
- Chord: This is a straight line segment whose endpoints are on the circle, but it does not necessarily pass through the center.
Given these definitions, the term that best describes the distance around a circle is the circumference.
Therefore, the answer is:
OC. Circumference
