PLEASE HELP
In the diagram below, DE and EF are tangent to O. What is the measure of ∠DEF?
A. 58°
B. 126°
C. 63°
D. 117°
![PLEASE HELP In the diagram below DE and EF are tangent to O What is the measure of DEFA 58B 126C 63D 117 class=](https://us-static.z-dn.net/files/d57/f2c516477700f7e8534bf50f9510bee1.png)