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What does the following function check for? (all necessary headers to be included and function is called from main)
#define MAX 10
 
typedef struct stack
{
    int top;
    int item[MAX];
}stack;
 
int function(stack *s)
{
    if(s->top == -1)
        return 1;
    else return 0;
}

A. full stack

B. invalid index

C. empty stack

D. infinite stack

Answer: Option C


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