Step-by-step explanation
For the given question
We are asked to determine the degrees for each of the sectors
We have that
![\begin{gathered} C=39\text{ people with contacts} \\ G=25\text{ people with glasses} \\ N=32\text{ people with neither contacts or glasses} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/h1rxpmbktublxa7q73t9b39ndlxon8l5sb.png)
We can get the answer using the fact that the sum of angles in a circle is 360 degrees
![\begin{gathered} So\text{ that} \\ C=(C)/(C+G+N)*360^0 \\ \\ C=(39)/(39+25+32)*360^0 \\ \\ C=146.25^0 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/vro9flp55jcpiu043r4c2zasl6twqd3hfa.png)
Also
![\begin{gathered} G=(C)/(C+G+N)*360^0 \\ \\ G=(25)/(39+25+32)*360^0 \\ \\ G=93.75^0 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/lbgspm2pkxqbh9rw5l4vxehv030ypv8yo9.png)
Finally
![\begin{gathered} N=(N)/(C+G+N)*360^0 \\ \\ N=(32)/(39+25+32)*360^0 \\ \\ N=120^0 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/zeekahnk3g1gw1nokcc5otxnlk3ntdtt9q.png)
Therefore, we will have our answer as an option B