Marco is selling floral arrangements. Each arrangement uses 1 vase and 11 orchids. Each vase costs Marco $4.00. Let C be the total cost of the arrangement and r be the cost of 1 orchid. Which equation should Marco use to find the total cost of each arrangement?
A) 11 = C +4r
B) 11C = r + 4
C) C = 4r + 1
D) C = 11r + 4