On reaction with sodium, 1 mol of a compound X gives 1 mol of H2. Which one of the following compounds might be X?

Since 1 mole of compound X reacts with Na  to evolve 1 mole of H2 gas, therefore the compound should have 2 active hydrogen atoms per mole which is possible only in option d. CH2OHCH2CH2CH2OH+2Na →NaOCH2CH2CH2ONa+H