What is the value of\[({{a}^{3}}-2{{a}^{2}}+4a-5)-(-{{a}^{3}}-8a+2{{a}^{2}}+5)\]?

• A.        \[2{{a}^{3}}+7{{a}^{2}}+6a-10\]
• B.        \[2{{a}^{3}}+7{{a}^{2}}+12a-10\]
• C.        \[2{{a}^{3}}-4{{a}^{2}}+12a-10\]  
• D.        \[2{{a}^{3}}-4{{a}^{2}}+6a-10\]