Question

line segment st is congruent to which line segment?

Explanation:

Step1: Recall congruent segments definition

Congruent segments have equal length.

Step2: Observe the circle

In a circle, if two line - segments are radii or are formed by the same - distance from a common point (in this case, from an external point to the points of tangency with the circle), they are congruent. Since $\overline{ST}$ and $\overline{CL}$ are likely formed in a way such that they have equal lengths (for example, if they are tangent segments from an external point $T$ to the circle with center $K$), $\overline{ST}\cong\overline{CL}$.

Answer:

C. $\overline{CL}$