How many such letter-pairs are there in the word BONAFIDE having same number of letters left between them as they have in the series?	Choose the correct choice from the following options:	A) 2	B) 3	C) 4	D) 1	E) None of these
BF,NO,AD,ANone of these,DF,DNone of these 6 POSSIBILITNone of theseS ARNone of these THNone of theseRNone of these   so none of these   ANSWNone of theseR:None of these
<result>E</result>
How many such letter-pairs are there in the word BONAFIDE having same number of letters left between them as they have in the series?