im confused with this question

Part 5 Consider the summary of data below for an unknown organic compound The compound shows an M* peak at 104 and a base peak at 73 in Mass Spectroscopy. IR shows a broad and strong absorption band in IR between 3200-3600 cm, a strong band just below 3000 cm, and no other bands of consequence, -The 'H NMR in TMS has three signals (all singlets) at 1.0, 3.5, and 3.0 ppm. The Broadband Decoupled 13C NMR shows three distinct signals, 2 signals between 0 and 50 ppm and 1 signal between 50 and 100 ppm. The DEPT-90 13C NMR shows no signals and the DEPT-135 13C NMR shows one positive and one negative signal. Using the above information, propose a formula and structure of the unknown compound