Which of the following has the formula C2H2OH?

Water is H2O Carbon dioxide is CO2 Yeast is a single-celled living organism that transforms sugar and starch into carbon dioxide and alcohol through fermentation. Yeast is essential to baking bread and making beer and wine. Yeasts are eukaryotic, single-celled microorganisms classified as members of the fungus kingdom. The first yeast originated hundreds of millions of years ago, and at least 1,500 species are currently recognized. They are estimated to constitute 1% of all described fungal species.