| Type of music | Number of people |
| Rock | 80 |
| Pop | 60 |
| Samba | 40 |
| Other | 20 |
QUESTION 138
A survey was conducted with 200 people about their preference for a type of music. The results are shown in the table below:
\begin{center}
\begin{tabular}{|c|c|}
\hline
Type of music & Number of people \\
\hline
Rock & 80 \\
Pop & 60 \\
Samba & 40 \\
Other & 20 \\
\hline
\end{tabular}
\end{center}
The percentage of people who prefer Rock is
(A) $20\%$
(B) $30\%$
(C) $40\%$
(D) $50\%$
(E) $60\%$