HMS, BM EQ-Bank 326 MC

The table below shows the ventilation rates of four cyclists during a 30-minute moderate-intensity cycling session.

\begin{array}{|c|c|c|}
\hline
\textbf{Cyclist} & \textbf{Resting ventilation rate} &
\textbf{Ventilation rate after 15 minutes} \\
& \textbf{(breaths per minute)} & \textbf{(breaths per minute)} \\
\hline
\text{A} & 14 & 24 \\
\hline
\text{B} & 12 & 38 \\
\hline
\text{C} & 16 & 29 \\
\hline
\text{D} & 15 & 52 \\
\hline
\end{array}

Which cyclist's ventilation response is most likely indicative of poor aerobic fitness?

1. Cyclist A
2. Cyclist B
3. Cyclist C
4. Cyclist D