Read the following passages and choose the correct options that can replace the \[\underline{\mathbf{underlined}}\]portions. Caller: Hello, \[\underline{\mathbf{Q16}}\] Receiver: \[\underline{\mathbf{Q17}}\] Caller: I am Tanuja, her friend. Receiver: I'm sorry she has just gone out. \[\underline{\mathbf{Q18}}\]? Caller: Yes please. Just tell her to \[\underline{\mathbf{Q19}}\] when she comes. Receiver: Does she have your number? Caller: \[\underline{\mathbf{Q20}}\] Thank you. Receiver: You are welcome.

• A.  Who's calling?              
• B.  Who's speaking?
• C.  May I speak to Radha, please?  
• D.  How are you?