Respuesta :

Option C is correct

Step-by-step explanation:

Definition:

Angle subtended by the chord on the same segment are equal.

From the given figure:

Draw a line that join S and T.

Here, ST line segment represents Chord.

and  subtended by the chord ST on the same segment

then by above definition:

Therefore, the angle R measures 47 degrees.

Bryannasalaz