Which of the following is the most stable enolate derived from 4-methylhexan-3-one?

• A. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-enolates-q5a.png"><img alt="The following is the most stable enolate derived from 4-methylhexan-3-one - option a" class="alignnone size-full wp-image-224655" height="94" src="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-enolates-q5a.png" width="132"/></a>
• B. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-enolates-q5b.png"><img alt="The following is the most stable enolate derived from 4-methylhexan-3-one - option b" class="alignnone size-full wp-image-224656" height="89" sizes="(max-width: 110px) 100vw, 110px" src="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-enolates-q5b.png" srcset="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-enolates-q5b.png 110w, https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-enolates-q5b-100x80.png 100w" width="110"/></a>
• C. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-enolates-q5c.png"><img alt="The following is the most stable enolate derived from 4-methylhexan-3-one - option c" class="alignnone size-full wp-image-224657" height="96" src="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-enolates-q5c.png" width="136"/></a>
• D. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-enolates-q5d.png"><img alt="The following is the most stable enolate derived from 4-methylhexan-3-one - option d" class="alignnone size-full wp-image-224658" height="103" src="https://www.sanfoundry.com/wp-content/uploads/2018/08/organic-chemistry-questions-answers-enolates-q5d.png" width="108"/></a>