A poll was taken to explore the relationship between age and support for a candidate in an election. The results of the poll are summarized in the table below.

\[
\begin{tabular}{|l|l|l|l|}
\hline
Age & For & Against & No Opinion \\
\hline
[tex]$21-30$[/tex] & 40 & 22 & 18 \\
\hline
[tex]$31-40$[/tex] & 30 & 50 & 25 \\
\hline
Over 40 & 25 & 35 & 8 \\
\hline
\end{tabular}
\]

How many people who are 40 or younger have no opinion?

A. 185
B. 25
C. 43
D. 8

To solve this problem, we need to find out how many people aged 40 or younger have no opinion about the candidate.

1. Look at the Age Groups: We are considering the age groups "21-30" and "31-40" because these groups include people who are 40 or younger.

2. Identify the Numbers for ‘No Opinion’:
- In the "21-30" age group, the number of people with no opinion is 18.
- In the "31-40" age group, the number of people with no opinion is 25.

3. Calculate the Total Number: To find the total number of people aged 40 or younger with no opinion, simply add the numbers from these two age groups:
- [tex]$18 + 25 = 43$[/tex]

Therefore, the total number of people aged 40 or younger who have no opinion is 43.