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Since you have given option D so you don't need the whole explanation of how this recursion works.

Why you didn't get that extra 0 is because you mistakenly thought that it is like:

if(x>0)
{
    myfunc(--x);
    print("%d",x);
}

  But check the braces.. print statement is not inside the if block. So myfunc(0) will print that one extra 0.

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answer should be option A only.

Answer 1

Caption