$$\begin{align}\& 103\times 107-91\times99    \& =(105-2)\times (105+2)-(95-4)\times (95+4)    \&=({{105}^{2}}-{{2}^{2}})-({{95}^{2}}-{{4}^{2}})    \&={{105}^{2}}-{{2}^{2}}-{{95}^{2}}+{{4}^{2}}    \&=({{105}^{2}}-{{95}^{2}})+({{4}^{2}}-{{2}^{2}})    \& =(105+95)\times(105-95)+12    \& =200\times 10+12    \& =2012    \end{align}$$ 
算式：$$103\times 107-91\times 99$$的计算结果是~\uline{~~~~~~~~~~}~． 
Options:
* $$2022$$ 
* $$2012$$ 
* $$2002$$ 
* $$2000$$ 