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";
- A. 将
else if ((remainder == 9) || (remainder == 0))修改为else效果相同 - B. 将
((1 <= remainder) && (remainder<= 5))修改为(remainder <= 5)效果相同 - C.
else if ((6 <= remainder) && (remainder <= 8))写法错误，应修改为else if (6 <= remainder <= 8) - D. 根据题意
remainder = N % 10应修改为remainder = N / 10