The correct option is B 170.43×10−11g
The sugar given to the entire population on earth is 3×1010×102=3×1012 molecules.
One mole (6×1023) molecules of sugar corresponds to 342 g.
Hence, 3×1012 molecules of sugar corresponds to 3×10126×1023×342=170.43×10−11 g.
Therefore, sugar required is 170.43×10−11 g.