Q4

MCQ1 mark, −0.33

Consider the following statements. $S_1:$ The sequence of procedure calls corresponds to a preorder traversal of the activation tree. $S_2:$ The sequence of procedure returns corresponds to a postorder traversal of the activation tree. Which one of the following options is correct?

(A)

$S_1$ is true and $S_2$ is false

(B)

$S_1$ is false and $S_2$ is true

(C)

$S_1$ is true and $S_2$ is true

(D)

$S_1$ is false and $S_2$ is false

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