Correct Response: B. Trade books are books marketed to a general audience. Children's trade books cover a range of topics and include both fiction and nonfiction texts. Wide reading of trade books provides students with exposure to many genres and helps them begin to develop an awareness of the structural differences between genres. Trade books are not limited to specific themes or lend themselves exclusively to literal comprehension (A), nor do they use simplified syntax or controlled vocabulary (C). Reading trade books does not explicitly (or implicitly) teach fourth-grade students phonological and phonemic awareness skills (D), which are typically developed at a much earlier grade level using primarily oral language activities.