Which of the following is equivalent to 18\frac{1}{8}81 in scientific notation?
1.25×10−11.25 \times 10^{-1}1.25×10−1
1.25×10−21.25 \times 10^{-2}1.25×10−2
8.0×10−18.0 \times 10^{-1}8.0×10−1
1.25×1011.25 \times 10^{1}1.25×101