Question 15 (5 points) Question 4(A): Following is matrix A [1] [2] [3] [1.] 3 4 7 (2.) 6 8 2 (3.) 4 39 What is A[.3) 9 O4,3,9 7 07, 2,9 Question 16 (5 points) Question 4(B): For the matrix below: [1] [2] [3] [1.] 3 4 7 [2.] 6 8 2 [3.] 4 39 What is A[c(2,3),c(1,2)]? Choose one from below: 4 7 8 2 6 8 4 3 6 8 2 4 3 9 3 4 7 6 8 2 Onesti Question 17 (5 points) Question 4()- For the matrix below LIJ [2] [3] [1.] 3 4 7 [2.) 6 8 2 13.) 4 39 What is A[1:2,231 O 682 682 8 4 3 3 4 7 8 2