A clock shows the time as 9 a.m. If the minute hand gains 5 minutes every hour, how many minutes will the clock gain by 4 p.m.?  Choose the correct choice:
A) 30 min	B) 35 min	C) 45 min	D) 50 min	E) 55 min

Rationale: there are 7 hours in between 9 a . m . to 4 p . m . 7 * 5 = 35 minutes . answer : b
Answer: B