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Question : [A]: Protostele is most simple primitive type of stele. [R]: According to Histogen theory there are three distinct apical layers which give rise to distinct tissue system of the body.

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If both A and R are TRUE and R is the CORRECT EXPLANATION of A
If both A and R are true but R is not the correct explanation of A
If A is true and R is false
If both A and R are false

Answer :B


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