a. Create and store a three dimensional array with six layers of a 42 matrix, filled with a decreasing sequence of values between 4.8 and 0.1 of the appropriate length. b. Extract and store as a new object the fourth- and first-row ele- ments, in that order, of the second column only of all layers c. of (a). Use a fourfold repetition of the second row of the matrix formed in (b) to fill a new array of dimensions 2223. d. Create a new array comprised of the results of deleting the sixth layer of (a). e. Overwrite the second and fourth row elements of the second column of layers 1, 3, and 5 of (d) with -99.