What is the result of multiplying 2.55 x 10^10 m x 3.5 x 10^-7m using proper significant figures and scientific notation.

1. 8.925 x 10^2 m^2
2. 8.92 x 10^1 m^2
3. 8.92 x 10^2
4. 8.9 x 10^3 m^2