How many moles of tungsten atoms are in 4.8x10 25 atoms of tungsten?

The answer is B, 8.0 x 10^1

There are 6.023 x 10^23 atoms in one mole, of any substance. So simply divide 4.8 x 10^25 by 6.023 x 10^23, to get about 79.69 which if you convert into scientific notation, is about 8.0 x 10^1

the answer for me was A but that's on novanet