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[A] : Citrus canker is a bacterial disea...

[A] : Citrus canker is a bacterial disease of worldwide distribution .
[R] : The causal organism of Citrus canker is the bacterial pathogen Xanthomonas citri .

A

1)If both A and R are true and R is the correct explanation of A

B

2)If both A and R are true but R is not the correct explanation of A

C

3)If A is true and R is false

D

4)If both A and R are false

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Match items of column I with thoses of column II and choose the correct combinations {:(,"Column I",,"ColumnII"),(a,"Pneumonia",(p),"Vibro cholerae"),(b,"Citrus Canker",(q),"Mycobacterium leprae"),(c,"Cholera",(r),"Yersinia pestis"),(d,"Leprosy",(s),"Xanthomonas citri"),(,"",(t),"Diplococcus pneumoniae"):}