What is the product (3.0×105)×(4.0×10−8)(3.0 \times 10^5) \times (4.0 \times 10^{-8})(3.0×105)×(4.0×10−8)?
1.2×10−21.2 \times 10^{-2}1.2×10−2
1.2×10−31.2 \times 10^{-3}1.2×10−3
1.2×10131.2 \times 10^{13}1.2×1013
7.0×10−37.0 \times 10^{-3}7.0×10−3