Read the following passages and choose the most appropriate options that can replace the underlined portions. Caller : Q4 to know if you do home-to-home services. Receiver : Yes sir, we do. Q5 Caller : I want my house painted. Receiver : When do you want us to come? Caller : I will inform you tomorrow. Receiver : That's fine, sir. Have a nice day.

• A.                       Do you happen to know
• B.               I?m calling  
• C.               Could you find out
• D.               Can you find out