A, B and C are three elements forming part of a compound in oxidation states of +2, +5 and -2 respectively. What could be the compound?

Oxidation states of A,B and C are +2,+5 and -2Let us substitute these oxidation state each of the compound givenAll the compounds given are neutral the algebric sum of oxidations number must be zeroOption :1A2(BC)22(+2) + [+5 -2]24+6 = 10Option:2A2(BC4)32(+2) + [+5+4(-2)]34-9 = -5Option:3A3(BC4)23(+3)+[+5+4(-2)]26 - 6 = 0Option:4ABC+2 +5 -2= +5The compound A3(BC4)2