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For the reaction 3Ararr2B the rate DB/dA...

For the reaction` 3Ararr2B` the rate `DB/dA`is equal to

A

`-2/3(dA)/(dt)`

B

`3/2(dA)/(dt)`

C

`-1/3(dA)/(dt)`

D

`3(dA)/(dt)`

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