Pick either (a) or (b) and identify the structure that best fits their spectra. Include a brief structural analysis and assignment of key spectral features of each of the spectra that enabled you to determine the structure (15 points).

300 MHZ 'H NMR spectrum 3H 2H 2H 1H 5 4 0 13C NMR spectrum 8 ppm Int. 170.67 132 132.50 475 118.09 966 65.19 1000 20.81 980 200 180 160 140 120 100 80 60 40 20 0 09-03-147 pom