Read the two passages about an online lecture platform. Passage 1: The platform lets students pause lectures, replay demonstrations, and submit questions outside class hours. These tools may increase access for learners with complicated schedules. Passage 2: A paused lecture is useful, but it is also silent in a way a teacher is not. The platform offers convenience, not the quick glance that notices a student's confusion before a hand goes up. Which answer best explains how each passage's word choice creates a different tone?