123 What is the syntax for addition of matrix A and B where, A= 4 5 6 B= 789 122 455? 222 OA.+B OA+.B OA+B OA++B What is the syntax for creating a 2x3 matrix (M) containing two row vectors A=[1 2 3], B=[4 5 6]? OM=[1; 2; 3,4;5;6] OM=[1 2 3; 4 5 6] OM=[123456] OM=[1;2;3;4;5;6]