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Study the following combinations and identify correct matches. I. Bacillus vulgaris-Saprophyte-Mineralization II. Erwinia amylovora-Saprophyte-Biopesticide III. Agrobacterium tumefaciens-Saprophyte- Genetic engineering IV.  Bdellovibrio bacteriovorus-Parasite-Water  purification

A)  I, II                                        

B)  II, III

C)  I, IV                                      

D)  II, IV