function (a, d) = confusing function(a, b) I a = 3; b = b + 1; d = 0; C = 3; for k = 1:length(b), d = d+b; end And we call it with the following script a = 2 b = 4 d = 3 [a, d] =confusing function(a, b); What is the value of the variable a at the end of the script? A) 3 B) 2 C) Undefined D) None of the above What is the value of the variable b at the end of the script? A) 5 B) 6 C) Undefined D) None of the above What is the value of the variable cat the end of the script? A) 5 B) 3 C) Undefined D) None of the above What is the value of the variable d at the end of the script? A) 5 B) 3 C) Undefined D) None of the above