The 1H - and 13C-NMR data for an unknown compound with molecular formula C4H4O3 are shown below. Deduce a structurat formula for this compound. 1H-NMP: 4.46(s,2H),11,0(s,2H). 13 C-NMR: 191.6,171,5,162.8,37.2. - You do not have to consider stereochemistry. - You do not have to explicilly draw H atoms. - In coses where there is more than one answer, just draw one