Complete this question by entering your answers in the tabs below. Which of the following costs could be directly traced to specific mobile sales events, such as selling pre-packaged servings of ice cream at the Cold Mountain Music Festival? Complete this question by entering your answers in the tabs below. Which of the following costs could be directly traced to "mobile sales" as opposed to "in-store sales? Complete this question by entering your answers in the tabs below. Which of the following costs could be directly traced to specific mobile sales events, such as selling pre-packaged servings of ice cream at the Cold Mountain Music Festival? Complete this question by entering your answers in the tabs below. Which of the following costs could be directly traced to "mobile sales" as opposed to "in-store sales