Answer:
a literature class
Step-by-step explanation:
The sentence shown in the question above, refers to a book called "The Call of the Wild". In the sentence the oraor is reporting the most exciting and important moment in the book.
As the phrase refers to the book, the audience that would probably be listening and participating in a conversation with this content, would be the people who are participating in a literature class.
People in cooking, math and history classes would engage in another type of conversation.