Concept:To fill the carton, divide the volume of the carton by the volume of one tin.Explanation:Volume of the carton =1540cm3Volume of one tin =77cm3Number of tins that can be packed =771540=20The weight of the tins and the carton does not affect the number of tins needed to fill the carton.Answer:The correct option is C. 20 tins of milk can be packed.