From the properties of circle and chord ,
The angle RSQ is 90 deg.
The angle RQS is 20 deg.
In the triangle , the sum of the angles of the triangle is 180 deg.
[tex]\angle RSQ+\angle RQS+\angle SRQ=180^{\circ}[/tex][tex]90^{\circ}+20^{\circ}+\angle SRQ=180^{\circ}[/tex][tex]\angle SRQ=180^{\circ}-110^{\circ}[/tex][tex]\angle SRQ=70^{\circ^{}}[/tex]
The correct option is D.
