During the kinetic study of the reaction `2A +B rarr C + D` following results were obtained.
`{:(, Run[A],[B] i n M,"Initial rate of fo rmation of D in "m s^(-1),),(I,0.1,0.1,6.0 xx 10^(-3),),(II,0.3,0.2,7.2xx10^(-2),),(III,0.3,0.4,2.88xx10^(-1),),(IV,0.4,0.1,2.40xx10^(-2),):}`
On the basis of above data which one is correct ?
A. `r = k[A]^(2)[B]`
B. `r = k[A][B]`
C. `r = k[A]^(2)[B]^(2)`
D. `r = k[A][B]^(2)`