单选题

以下代码使用了辗转相除法求解最大公因数,请在横线处填入( ),使其能正确实现相应功能。

int gcd(int a, int b) {

while (b != 0) {

      _____________________

}

return a;

}

A

int temp = b; b = a / b; a = temp;

B

int temp = a; a = b / a; b = temp;

C

int temp = b; b = a % b; a = temp;

D

b = a % b; a = b;

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