求三色彩球的颜色。有数量无限的红(Red)绿(Green)蓝(Blue)三种彩球排成一行，每组先为 5 个红色球，随后 3 个绿色，最后为 2 个蓝色。每个球都有编号，从左到右依次为 1,2,3……。输入整数代表编号，求该编号球的颜色。下面是 C++ 代码是实现，正确说法是（ ）。

int N, remainder;
cin >> N;
remainder = N % 10; // remainder变量保存余数

if((1 <= remainder) && (remainder<= 5))
    cout << "Red";
else if ((6 <= remainder) &&  (remainder <= 8))
    cout << "Green";
else if ((remainder == 9) || (remainder == 0))
    cout << "Blue";