Which of the following isomeric structures ha | vedclass

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(D) The stability of cyclohexane derivatives in chair conformation depends on the equatorial $(e)$ vs axial $(a)$ orientation of substituents. Substit

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(D) The stability of cyclohexane derivatives in chair conformation depends on the equatorial $(e)$ vs axial $(a)$ orientation of substituents. Substituents in the equatorial position are more stable due to reduced $1,3-$diaxial interactions. Analyzing the given structures: $A$: $1,2$-diaxial $(aa)$ $B$: $1,4$-diaxial $(aa)$ $C$: $1,3$-axial-equatorial $(ae)$ $D$: $1,3$-diequatorial $(ee)$ Structure $D$ has both methyl groups in the equatorial position,which minimizes steric repulsion and results in the lowest energy (highest stability).

Which of the following isomeric structures has the lowest energy?

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