Q29

MCQ2 marks, −0.67

Consider the following code snippet in C language that computes the number of nodes in a non-empty singly linked list pointed to by the pointer variable head. struct node{ int elt; struct node *next; }; int getListSize (struct node *head) { if( E1 ) return 1; return E2; } Which one of the following options gives the correct replacements for the expressions $\textbf{E1}$ and $\textbf{E2}?$

(A)

E1: head == NULL E2: 1 + getListSize(head)

(B)

E1: head->next == NULL E2: 1 + getListSize(head->next)

(C)

E1: head == NULL E2: 1 + getListSize(head->next)

(D)

E1: head->next == NULL E2: 1 + getListSize(head)

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