计算1+2+3+…+100正确算法的伪代码是？
A、sum=0n=1while n＜100 do sum=sum+n n=n+1end doprint sum
B、sum=0n=1while n≤100 do sum=sum+1 n=n+1end doprint sum
C、sum=0n=1while n≤100 do sum=sum+n n=n+1end doprint sum
D、sum=0n=1while n＜100 do sum=sum+1 n=n+1end doprint sum