In this student draft, one support detail needs explanation: "(1) Educational podcasts can make commuting time more useful for language learners. (2) A learner on a crowded train may not have space to open a textbook. (3) Listening to a short vocabulary episode allows the learner to practice pronunciation and meaning while standing. (4) The best study tools fit the situation in which they are used." Which sentence after sentence 3 best explains how the detail supports the point?