Required Information NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part Let A be a 3 x 4 matrix, B be a 4 x 5 matrix, and C be a 4 x 4 matrix. Determine the products that are defined, and find the size of the products that are defined. AB Multiple Choice AB is defined, and its dimension is 5x3. AB is not defined since the number of columns of A does not equal the number of rows of B. AB is not defined since the number of rows of A does not equal the number of columns of B AB is defined, and its dimensions 3 x 5