The circle above is circumscribed around square ABCD. Points E and F lie on minor arcs AB and CD respectively. The measure of minor arc EF is between?
A. 90° and 270°
B. 90° and 180°
C. 60° and 120°
D. 0° and 90°
E. 0° and 180°
The OA is B.
I'm confused with this PS question. Experts, any suggestion? I appreciate your help. Thanks in advance.
