Assertion(A) : Coliform bacteria are organisms that are present in the environment and in the faeces of all warm blooded animals and humans.
Reason(R) : Most Coliform bacteria do not cause diseases.
(a) both A and R are true and R is the correct explanation of A
(b) both A and R are true and R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
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