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
print(num2,end="")
print(num2,end =" ")
print(num1)
print(num1,end =" ")
