Chemical Kinetics: JEE Main 2024 Chemistry question

During Kinetic study of reaction $\mathrm{2 A+B \rightarrow C+D}$, the following results were obtained : | $\mathrm{A [M]}$ | $\mathrm{B [M]}$ | initial rate of formation of $\mathrm{D}$ I | 0.1 | 0.1 | $6.0\times10^{-3}$ II | 0.3 | 0.2 | $7.2\times10^{-2}$ III | 0.3 | 0.4 | $2.88\times10^{-1}$ IV | 0.4 | 0.1 | $2.40\times10^{-2}$ Based on above data, overall order of the reaction is _________.