单选题

以下C++代码可以找出百位、十位和个位满足特定条件的三位数,横线处应该填入的是(    )

int count = 0;
for (int i = 100; i <= 999; i++) {
	int a = i / 100;
	_________________________
	int c = i % 10;
	if (a * a + b * b == c * c) {
		count++;
	}
}
A

int b = (i / 10) / 10;

B

int b = (i / 10) % 10;

C

int b = (i % 10) / 10;

D

int b = (i % 10) % 10;

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