Hey friends answer this please
Please give the letter choice

[tex]1.2\cdot 10^{-3}-2.0\cdot 10^{-4}=1.2\cdot 10^{-3}-0.20\cdot 10^{-3}\\\\=1.0\cdot 10^{-3}[/tex]
The appropriate choice is ...
... D) 1.0×10⁻³ inch