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In the following first order reactions: ...

In the following first order reactions:
`A+ "Reagent" overset(K_(1))(rarr) Product`
`B+ "Reagent" overset(K_(2))(rarr) Product`
The ratio of `K_(1)//K_(2)` when only `50%` of `B` reacts in a given time when `94%` of `A` has been reacted is:

A

`4.06`

B

`3.06`

C

`2.06`

D

`0.06`

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