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 5 p.m.?  Choose the correct choice from the following options
A) 30 min	B) 35 min	C) 45 min	D) 40 min	E) 55 min

Rationale: "there are 8 hours in between 9 a . m . to 5 p . m . 8 * 5 = 40 minutes . answer : d"
Answer: D