(a) Enter the matrix A below into MATLAB and use addressing to create a 4 times 3 array B consisting of the second through fourth columns of A. A = |3 7 -4 12 5 9 10 2 6 13 8 11 15 5 4 1| (b) Find the maximum values in each column of A (shown above) as well as the index locations of where those maximums were in their respective columns. (c) Sort each row of A (shown above) and store the result in an array C. Also sort the rows of A so that the third column is in descending order and store in array D