The elimination reactions of the cis-1-iodo-4-isopropylcyclohexane and trans-1-iodo-4-isopropylcyclohexane with sodium methoxide in methanol form 4-isopropylcyclohex-1-ene. Explain the reason why the cis-1-iodo-4-isopropylcyclohexane is more reactive than the trans-1-iodo-4-isopropylcyclohexane.

• A. The isopropyl substituent is in a more stable axial position.
• B. The isopropyl substituent is in a more stable equatorial position.
• C. The isopropyl substituent is located three carbons away.
• D. The isopropyl substituent is in a less stable equatorial position.

Answer: (B)