Acme Industries pays at the time-and-a-half rate for all time worked over 8 hours in any one day no matter how many hours are worked in a week. Susan Jones is an employee of Acme Industries. Last week she worked 10 hours on Monday, 6 hours on Tuesday, and 9 hours on Friday. Her gross earnings for the week were $277.34. What is her regular rate of pay?

A) $10.47

B) $9.40

C) $12.33

D) $14.22