&gt; x&#91;1, 2&#93;
A. 3
B. 2
C. 1
D. 0
Answer:A
&gt; x&#91;1, 2&#93;
A. 3 B. 2 C. 1 D. 0
Explanation:Matrices can be subsetted in the usual way with (i,j) type indices. 7. What would be the output of the following code ?