SOLUTION
First, we will define the terms and match the line that matches the definition.
RADIUS
A straight line from the center to the circumference of a circle
DIAMETER
A straight line passing from side to side through the center of a body(circle)
CHORD
The chord of a circle can be defined as the line segment joining any two points on the circumference of the circle.
TANGENT
The tangent to a circle is defined as a straight line that touches the circle at a single point.