Answer:
According to Jem, a "Hot Steam" is d) A mysterious event in the neighborhood.
Explanation:Jem, in this context, is a character from the book "To Kill a Mockingbird" by Harper Lee. In the story, Jem describes a "Hot Steam" as a mysterious event that occurs in their neighborhood. He mentions that every now and then, the neighborhood experiences strange phenomena, like a sudden burst of hot air or a strange smell, which he refers to as a "Hot Steam." While the exact nature of the "Hot Steam" is not explicitly explained in the book, it is described as a peculiar occurrence that captures the curiosity and imagination of the children in the neighborhood, including Jem and his sister, Scout. Overall, Jem's description of a "Hot Steam" suggests that it is a unique and unexplained phenomenon that adds an element of mystery and intrigue to their neighborhood.