Mark the letter A, B, C or D to indicate the correct response to each of the following exchanges. (Tô phương án A, B, C hoặc D trên phiếu TLTN tương ứng với các đáp án đúng trong các tình huống giao tiếp sau). A father and his son were talking about the news they were watching on TV. Father: "Do you support the plan to build a new supermarket near your school?" Son: "______"