谈论未来打算的句型 — 英语选择题

电话响了，莉莉还没决定由谁接；她已买好明天去看姑妈的车票。Lily: The phone is ringing. I ___ it. I have already bought my train ticket. I ___ my aunt tomorrow. A. will answer; am going to visit B. answer; will visiting C. am answering; going to visit D. will answering; visit