During the kinetic study of the reaction, 2A + B $ \to $ C + D, following results were obtained

Run	[A]/mol L$-$1	[B]/mol L$-$1	Initial rate of formation of D/mol L$-$1 min$-$1
I.	0.1	0.1	6.0$ \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?