An I R spectrum has percent transmittance from 0 to 100 percent on the y axis and wave number in inverse centimeters from 4000 to 600 on the x axis, with peaks, or bands, pointing downwards. There is a strong, very broad band in the 3600 to 3100 inverse centimeter range, a strong, spiked peak in the 3000 to 2800 inverse centimeter range, a weak peak near 1850 inverse centimeters, a sharp peak near 1640 inverse centimeters, a series of spiked bands in the 1500 to 1200 inverse centimeter range, and two strong bands at 990 and 910 inverse centimeters. Which compound matches the IR spectrum