39. Which statement is true about the task-based language teaching? (A) The pre-task phase takes place to reinforce students’ learning. (B) During the post-task phase, a teacher can introduce the students to the language they will need to complete the task. (C) The meaning dimension of language is emphasized, and the language practiced in the classroom derives from the nature of a particular project through the students’ cooperation. (D) It focuses on the sequence of linguistic items, rather than the task completion.