How would I make a tree diagram out of this problem?
1.
In his closet, John has one red shirt, one blue shirt, one pair of shorts, one pair of jeans, and a pair of slacks. List all of the possible shirt-and-pant combinations below.
John discovered that he also has a pair of boots and a pair of dress shoes in his closet. Make a tree diagram showing all of the possible shirt, pant, and shoe combinations.