Read the given passage and fill in the blanks by choosing an appropriate option.
The molar ratio of CO2 and H2O produced by the combustion of one mole of hydrocarbon _i_ is 5 : 4. The succeeding homologoue of i is _ii_ while preceding homologoue is _iii_.
i | ii | iii | |
A | C5H8 | C6H10 | C4H6 |
B | C3H8 | C4H10 | C2H6 |
C | C5H10 | C6H12 | C4H8 |
D | C2H4 | C3H6 | CH4 |