4 9 6 Question 20 (5 points) Question 4 (F) For the matrix below: 9 -- [1] [2] [3] [1.] 3 4 7 [2.] 6 8 2 [3.] 4 3 9 12 15 What is A[-c(1,3),-c(1,2)] ? Choose one from below: 3 18 3 7 6 2 3 4 4 3 Suchmitu anned MacBook Air 4 9 6 Question 20 (5 points) Question 4 (F) For the matrix below: 9 -- [1] [2] [3] [1.] 3 4 7 [2.] 6 8 2 [3.] 4 3 9 12 15 What is A[-c(1,3),-c(1,2)] ? Choose one from below: 3 18 3 7 6 2 3 4 4 3 Suchmitu anned MacBook Air