Beck used a compass and straightedge to accurately construct line segment OS as shown in the figure.
Which could be the measures of angle POS and angle POQ?
A) m∠POS = 60° , m∠POQ = 120°
B) m∠POS = 50° , m∠POQ = 110°
C) m∠POS = 50° , m∠POQ = 120°
