During the kinetic study of the reaction $2A+B\to C+D$, the following results were obtained:| Run | $[A]$ (M) | $[B]$ (M) | Initial Rate (${\text{mol L}}^{-1}{\text{min}}^{-1}$) ||---|---|---|---|| I | $0.1$ | $0.1$ | $6.0\times 10^{-3}$ || II | $0.3$ | $0.2$ | $7.2\times 10^{-2}$ || III | $0.3$ | $0.4$ | $2.88\times 10^{-1}$ || IV | $0.4$ | $0.1$ | $2.40\times 10^{-2}$ |Based on the above data which one of the following is correct?

1. A
   $\text{rate}=k[A][B{]}^2$
2. B
   $\text{rate}=k[A{]}^2[B]$
3. C
   $\text{rate}=k[A][B]$
4. D
   $\text{rate}=k[A{]}^2[B{]}^2$