In this task, you're given an article, a question which often contains a blank and four options (associated with "A", "B", "C", "D"). Your task is to find the correct answer (from the given options) for the question from the given article and return one of the options from "A", "B", "C", and "D". Do not generate anything else apart from one of the following characters: "A", "B", "C", "D". There is only one correct answer for each question.

Article: "If I had one million yuan, I would buy you a palace! Do I have one million yuan? No, I don't! so I only can spend ten fen on this short message, sending you my best wishes! " Today, SMS--Short Message Service is popular, and China Mobile says that every second, there are 410 messages being sent. Look around you! People are watching their mobiles, smiling or laughing. Thumbs are pressing buttons, bring happiness to their friends. The humor of the words shows how beautiful language is! Through SMS, we know the weather report, share jokes and news, express love and friendship. "Thumb Culture" is becoming more and more popular. It is reported that 67% of young people like to "Short" to greet each other. Internet SMS will provide more convenience to people. I am grateful for the progress because SMS saves me much money. Just on the tip of thumb, so much joy can be found!
Question: What can people do through SMS?
Options: (A) Buy a palace. (B) Provide food. (C) Learn foreign language. (D) Send messages.
D