Consider the following recursive C function that takes two arguments unsigned int rer (unsigned int n, unsigned int r) { if (n > 0) return (n% r + rer(n/r, r)); else return 0; } What is the return value of the function rer when it is called as rer (513, 2)?
- A. 9
- B. 8
- C. 5
- D. 2
Answer: D. 2