A cooler at a picnic contains 100 cans of soda covered by ice. there are 21 21 cans of​ cola, 10 10 cans of orange​ soda, 13 13 cans of ginger​ ale, and 56 56 cans of root beer. the cans are all the same size and shape. if one can is selected at random from the​ cooler, determine the probability that the soda selected is ginger ale ginger ale​, orange soda orange soda, or cola. cola.