For a reaction \[2A+B\to \]Products, doubling the initial concentration of both the reactants increases the rate by a factor of 8, and doubling the concentration of B alone doubles the rate. The rate law for the reaction is [MP PET 2001]

• A.                 \[\gamma =k[A]{{[B]}^{2}}\]     
• B.                 \[\gamma =k{{[A]}^{2}}[B]\]
• C.                 \[\gamma =k[A][B]\]    
• D.                 \[\gamma =k{{[A]}^{2}}{{[B]}^{2}}\]