During week 1, Nurse Cameron works 5 shifts. During week 2, she worked twice as many shifts as she did during week 1. During week 3, she added 4 shifts to the number of shifts she worked during week 2. Which equation below describes the number of shifts Nurse Cameron worked during week 3?
A. Shifts = (2)(5) + 4
B. Shifts = (4)(5) + 2
C. Shifts = 5 + 2 + 4
D. Shifts = (5)(2)(4)
