For items number 9 and 10, refer to the figure below.
9. In the figure above, $\overline{CB}$ is a secant and $\overline{ED}$ is a tangent intersecting at B, $\stackrel\frown{CB} = 160^\circ$, what is the measure of $\angle CBD$?
A. $90^\circ$
B. $80^\circ$
C. $60^\circ$
D. $50^\circ$
10. If $\stackrel\frown{CFB} = 190^\circ$, what is $m\angle CBE$?
A. $95^\circ$
B. $85^\circ$
C. $75^\circ$
D. $65^\circ$