Students make 84(1)/(2) ounces of liquid soap for a craft fair. They put the soap in 6(1)/(2)-ounce bottles and sell each bottle for $5.50. Which expression shows how much students earn if they sell all the bottles of liquid soap? (A) $71.50;(84(1)/(2)-:6(1)/(2))xx5.50 (B) $92.18;(84(1)/(2)-:5.50)xx6 (C) $18.50;(84(1)/(2)-:6(1)/(2))+5.50 (D) $99.86;(84(1)/(2)xx6(1)/(2))-:5.50