Which sentence in this passage contains informal use of language? A. One way schools can reassure parents about their children’s safety is by allowing a parent or close relative to accompany the child. B. Field trips offer valuable opportunities for relating and supporting classroom learning with real-world experiences. C. The teacher and school management would be held responsible for the students' safety outside of the school. D. School administrators may browbeat teachers from organizing field trips because of the increased responsibility it thrusts on them.