Which problem solving strategy would be best to solve this problem?

You are decorating a rectangular table to surprise your friend with a party. The table is 4 feet by 10 feet. If you want to place a balloon in each corner and every 2 feet along the table, how many balloons will you need?
A. guess, check and revise
B. make a model or diagram
C. write an equation
D. make a table, chart or list