An organic compound is burnt with excess of O to produce CO(g) and HO(1), which results in 25% volume contraction. Which of the following option(s) satisfy the given conditions. (a) 10 ml C3Hg + 110 ml O (c) 10 ml C3HO + 50 ml O (b) 20 ml CHO + 80 ml 0 (d) 40 ml CHO4 + 60 ml O