Answer:
B. AD
Step-by-step explanation:
A secant is a [tex]line[/tex] which intersects a circle at exactly two different points and leaves a chord on joining those two points.
A chord is a line which which terminates on the two different points on the circle.
Radius is the line joining the center to any of the point on the circle.
Tangent is a line which crosses from the outer periphery of the circle touching at any of its one point.
Thus the secant in the given diagram is clearly none other than [tex]AD[/tex].
