A5. Urar has created an unusual clock. The minute hand rotates as on a regular clock, but the hour hand rotates in the opposite direction. During testing, he set the hands to the initial position (the clock shows 12:00). What is the smaller angle between the hands after three hours and twenty minutes?
(A) $140^{\circ}$
(B) $150^{\circ}$
(C) $165^{\circ}$
(D) $175^{\circ}$
(E) $220^{\circ}$
A5 The hour hand describes a positive angle of $90^{\circ}+\frac{1}{3} \cdot 30^{\circ}=100^{\circ}$, while the minute hand describes a negative angle of $120^{\circ}$. The smaller angle between the hands is $360^{\circ}-\left(100^{\circ}+120^{\circ}\right)=140^{\circ}$.