Below Is a Diagram of O₂ uptake at the Fish $\begin{array}{l}1=\text { Blood } \quad \rightarrow \\2=\text { Water } \quad \leftarrow\end{array}$

Below is a diagram of O₂ uptake at the fish gill. The values shown indicate percent fluid saturation of O₂. Which choice below identifies the fluid and the direction of flow CORRECTLY?

A) $\begin{array}{l}1=\text { Blood } \quad \rightarrow \\2=\text { Water } \quad \leftarrow\end{array}$

B) $\begin{array}{l}1=\text { Water }&\longleftarrow \\2=\text { Blood }&\longleftarrow\end{array}$

C) $\begin{array}{l}1=\text { Water } \longrightarrow \\2=\text { Blood } \longleftarrow\end{array}$

D) $\begin{array}{l}1=\text { Blood } \quad \longleftarrow \\2=\text { Water } \quad \longrightarrow\end{array}$

E)
$\begin{array}{l}1=\text { Water }&\longleftarrow \\2=\text { Blood }&\longrightarrow\end{array}$