单选题

请根据运行结果将代码空白处填上合适的选项? ( )

代码:

num1=1

while num1 <= 5:

    num2=1

    while num2 <= 5:

            ___________

            num2 += 1

    print()

    num1 += 1

运行结果:

1 1 1 1 1

2 2 2 2 2

3 3 3 3 3

4 4 4 4 4

5 5 5 5 5

A

print(num2, end="")

B

print(num2, end =" ")

C

print(num1)

D

print(num1, end =" ")

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