Step 1: Understand the relationship.
The term "Shoal" refers to a collective noun used for a group of fish. Therefore, the analogy is asking us to find the correct collective noun for a group of lions.
Step 2: Examine options.
\begin{itemize}
\item (A) Pride: The correct collective noun for a group of lions is a "pride of lions."
\item (B) School: This is used for a group of fish or dolphins, not lions.
\item (C) Forest: Refers to a place where animals live, not a collective noun.
\item (D) Series: This refers to a sequence or order, not an animal group.
\end{itemize}
Step 3: Conclude.
Thus, just as "Shoal" is the correct collective noun for fish, "Pride" is the correct collective noun for lions.
Final Answer:
\[
\boxed{\text{Pride}}
\]