The seventh-grade class is building target areas for a PE activity. The bases for the game will be in a circular shape. The diameter of each circle is 3 feet. Approximately, how many square feet of the turf need to be painted for a base circle? Use 3.14 for π and round your answer to the nearest tenth. (1 point) Select one: a. 7.1 square feet b. 9.4 square feet c. 18.8 square feet d. 28.3 square feet