An accurate clock shows 8 o'clock in the morning. Through how many degrees will the hour hand rotate when the clock shows 12 o'clock noon?  Choose the correct choice from the following answers:  A) 180°  B) 120°  C) 160°  D) 170°  E) 150°
The angle traced by the hour hand in 12 hours is 360°, which is 30° per hour.   In 4 hours, the angle traced by the hour hand is 4×30° = 120°   The answer is 120°.
<result>B</result>
An accurate clock shows 8 o'clock in the morning. Through how many degrees will the hour hand rotate when the clock shows 12 o'clock noon?