In the following reaction sequence, identify the major product 'C':\(\mathrm{C}_8 \mathrm{H}_{10} \xrightarrow[\mathrm{H}_2 \mathrm{SO}_4]{\mathrm{HNO}_3} \mathrm{~A} \xrightarrow[\Delta]{\mathrm{Br}_2} \mathrm{~B} \xrightarrow[\mathrm{KOH}]{\text { alcoholic }} \mathrm{C}\)