PLEASE WRITE THE FOLLOWING ANSWER IN PYTHON

13. Take two matrices, A and B, which are n x m' and m' x m, respec- tively. Implement matrix multiplication, without relying on numpy's @ or dot() as applied to matrices. (a) Write the most obvious implementation you can think of, which takes in A and B and returns a new C. Use three loops. (b) Write a function without the third loop by applying @ to vectors. (c) Write a third function that takes in A and B and returns C, but this time these are lists-of-lists, instead of arrays. 1) Test the above three functions by employing specific examples for A and B, say 3 x 4 and 4 x 2, respectively. 13. Take two matrices, A and B, which are n x m' and m' x m, respec- tively. Implement matrix multiplication, without relying on numpy's @ or dot() as applied to matrices. (a) Write the most obvious implementation you can think of, which takes in A and B and returns a new C. Use three loops. (b) Write a function without the third loop by applying @ to vectors. (c) Write a third function that takes in A and B and returns C, but this time these are lists-of-lists, instead of arrays. 1) Test the above three functions by employing specific examples for A and B, say 3 x 4 and 4 x 2, respectively