The study of bugs even has a boring name: entomology. How wrong Seth was! Just the first day of class changed Seth's mind about this area of biology. His teacher, Mrs. Searcy, presented information about the life cycle of fireflies, dragonflies, and praying mantises. Seth had never known how truly fascinating and bizarre the birth, life, and death of each insect was. By the end of the entomology unit, Seth thought studying insects might be something he'd want to do more in the future.

Which sentence would work best as an introductory sentence to this paragraph?
A) Seth had an extremely full schedule of classes this semester.
B) By far, out of all his classes, Seth loves to go to Physical Education the most.
C) Mrs. Searcy had a reputation for being the best, toughest, and yet fairest teacher at the school.
D) At first, Seth was sure that studying bugs was going to be the most boring part of his science class.