57. What is the main idea of these two passages? (A) If students can identify their selves, they can maximize their L2 use. (B) Ideal L2 selves and ought L2 selves are reactive strategies of language use. (C) Because students would reduce the gap between their actual selves and their future L2 selves, they would feel anxious. (D) Future L2 selves are crucial to students’ learning motivation.