Wednesday, Diana made y dollars per hour for 8 hours of work. Thursday, she made y dollars per hour for 4 hours of work. She also got a $45 bonus. Which expression best represents the total amount of money Diana earned?
A. 12y+45 C. 8m+4t+45
B. 12t-45 D. 4y+45
Please show the work step. This is for an HW asignment.