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In the following sequence of reactions, ...

In the following sequence of reactions, the alkene affords the compound `B`:
`CH_(3)CH=CHCH_(3)overset(O_(3))rarrAunderset(Zn)overset(H_(2)O)rarrB`
The compound `B` is

A

`CH_(3)CHO`

B

`CH_(3)CH_(2)CHO`

C

`CH_(3)COCH_(3)` and conc. `HCl`

D

`CH_(3)CH_(2)CH_(3)`

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