Which strategy best explains how to solve this problem?

Emily bought a wreath and 2 boxes of outdoor lights every year. The wreath costs $14.99 and each box of lights costs $3.99.

What is the total amount of money Emily spent after 5 years?

A.
Guess and test.

Guess that Emily spent $30. Multiply $3.99 by 2. Then add that answer to $14.99. Divide this number by 5. If the answer is not 30, then revise your guess, and test your answer again.

B.
Work backward.

Start by multiplying $3.99 by 2 to find the cost of the lights. Add the cost of the wreath to the sum and then divide by 5.

C.
Draw a diagram.

Draw a large circle. Draw 2 squares inside the circle and a triangle. Write $3.99 in each square and write $14.99 inside the triangle. Add up all the amounts inside the circle ($22.97) to find the amount Emily spent in 1 year. Multiply the amount by 5 to find the amount spent in 5 years.

Plz plz hurry!