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Which of the following is an incorrect call to the function void sample(int a, int b=0, int c=0)?

75. Which of the following is an incorrect call to the function void sample(int a, int b=0, int c=0)?

1. sample(10,20,30);
2. sample();
3. sample(50);
4. sample(30,40);

Answer: B) sample();

Explanation:

Here we need to pass at least one argument to the function.