1. A) A license plate consists of a letter-letter-letter-digit-digit-digit arrangement such as XYZ 321. How many license arrangements are possible if vowels (a, e, i, o, u) are not allowed? B) Sam wishes to choose an outfit by first choosing a pair of bottoms and then a top. Given the selections below, how many possible outfits can Sam choose? Use a tree diagram to solve the problem. Bottoms Tops skirt shorts T-shirt dress pants track pants jeans blowse leggings