Which one of the following is not true about antibiotics? (A) First antibiotic was discovered by...

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Which one of the following is not true about antibiotics?
(A) First antibiotic was discovered by Alexander Flemming.
(B) The term 'antibiotic' was coined by S. Waksman in \( 1942 . \)
(C) Some persons can beallergic to a particular antibiotic.
(D) Each antibi otic is effective only against one particular kind of germ.
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