What is the dielectric constant of free space?

• A. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/05/engineering-materials-metallurgy-questions-answers-polarisation-dielectrics-q6a.png"><img alt="The dielectric constant of free space - option a" class="size-full wp-image-239181" height="49" src="https://www.sanfoundry.com/wp-content/uploads/2018/05/engineering-materials-metallurgy-questions-answers-polarisation-dielectrics-q6a.png" width="30"/></a>
• B. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/05/engineering-materials-metallurgy-questions-answers-polarisation-dielectrics-q6b.png"><img alt="The dielectric constant of free space - option b" class="size-full wp-image-239182" height="45" src="https://www.sanfoundry.com/wp-content/uploads/2018/05/engineering-materials-metallurgy-questions-answers-polarisation-dielectrics-q6b.png" width="29"/></a>
• C. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/05/engineering-materials-metallurgy-questions-answers-polarisation-dielectrics-q6c.png"><img alt="The dielectric constant of free space - option c" class="size-full wp-image-239183" height="44" src="https://www.sanfoundry.com/wp-content/uploads/2018/05/engineering-materials-metallurgy-questions-answers-polarisation-dielectrics-q6c.png" width="45"/></a>
• D. <a href="https://www.sanfoundry.com/wp-content/uploads/2018/05/engineering-materials-metallurgy-questions-answers-polarisation-dielectrics-q6d.png"><img alt="The dielectric constant of free space - option d" class="size-full wp-image-239184" height="50" src="https://www.sanfoundry.com/wp-content/uploads/2018/05/engineering-materials-metallurgy-questions-answers-polarisation-dielectrics-q6d.png" width="51"/></a>