QUESTION 140
The graph below shows the evolution of the price of a product over 5 months.
\begin{center}
\includegraphics[max width=\textwidth]{graph_140}
\end{center}
Based on the graph, the percentage increase in the price of the product from the first to the fifth month is
(A) $20\%$
(B) $25\%$
(C) $40\%$
(D) $50\%$
(E) $60\%$