Compound B has a molecular formula C9H9ClO. The IR, 1H NMR (with expansions of individual patterns), and 13C NMR spectra with DEPT data of compound B are shown below. The UV spectrum of this compound shows an absorption maximum at a wavelength of 246nm. a) Discuss all the spectral data to elucidate the structure of the compound B. (7 marks) b) Justify the maximum UV absorption value of 246nm to the elucidated structure. Broad-band carbon DEPT-45 DEPT-90 DEPT-135 resonances, (ppm) 3941128129132136196+++++NopeakNopeakNopeakNopeakNopeakNopeakNopeakNopeak++++++