Compound a, c9h12, undergoes nitration to give 2 products. the 1h nmr spectrum of a shows a complex five-proton multiplet at 7.27-7.37 δ, a one-proton septet at 2.87 δ, and a six-proton doublet at 1

Compound a, c9h12, undergoes nitration to give 2 products. the 1h nmr spectrum of a shows a complex five-proton multiplet at 7.27-7.37 δ, a one-proton septet at 2.87 δ, and a six-proton doublet at 1.20 δ. what is the structure of a