A mystery novel and a Science textbook are two very different types of books read for very different reasons. A mystery novel is read for entertainment. The story presents elements that create tension and suspense, making the reader curious and excited about what will happen next. The language is accessible and understandable, since the author's purpose is to keep the reader engaged. A Science textbook is read with the purpose of learning about the subject. Learning and memorizing information is a more careful and demanding process, which makes it slower. This type of book will present specific/technical language to offer explanations and details. This slows down the process of reading it, since information should be well comprehended before the reader is able to move on. It also makes the whole process more tiring, so the reader is more likely to interrupt the perusal several times.
B - Alejandro wrote the song that Millie hoped to play in the talent show.
To have an active voice the subject should come before the verb (Alejando wrote and Millie hoped) the other options had the predicate before the verb and had the action happening to them.
