难题求解，各位筒子帮忙~~

If 10⁵⁰ – 74 is written as an integer in base 10 notation, what is the sum of the digits in that integer?

A.      424

B.      433

C.      440

D.     449

E.      467

答案是C，看不大懂，有人可以解释一下么？THANKS~

减下来最后两位是26~前面应该是48个9

结果是9×48＋2+6=440

哦，原来是这样，明白啦~~谢谢2楼的~~~