Consider the four compounds A, B, C, and D.(a) Draw all possible alkenes formed when each...

Consider the four compounds A, B, C, and D.(a) Draw all possible alkenes formed when each compound undergoes β elimination, and label the major product when one product predominates. Assume alcohols are dehydrated with H2SO4 and alkyl halides are treated with KOC(CH3)3. (b) Which compound would be the best starting material for the synthesis of 3, 3-dimethylcyclopentene?