In order to solve this exercise it is important to remember the following definitions:
1. The diameter of a circle is a line that passes through its center and touches two points on the circle. It is twice the radius.
2. A chord is a line segment that has its endpoints on the edge of the circle.
3. A tangent is a line segment that touches the circle at one point.
4. A secant is a line segment that intersects the circle at two points.
Therefore, based on the definitions shown, you can conclude that the answer is: Option B.