David : “Good Morning, Sir.” Mr. Holmes : “Good Morning, David. Come on in” David : “How are you, Sir?” Mr. Holmes : “I am very well, son. How are you? You look

David : “Good Morning, Sir.”
Mr. Holmes : “Good Morning, David. Come on in”
David : “How are you, Sir?”
Mr. Holmes : “I am very well, son. How are you? You look so happy today.”
David : “I am sir, I am happy. And I am here to share my happiness with you.”
Mr. Holmes : “Wow, I am curious. What is it, David?”
David : “Well, next week I will marry my fiancé, sir. Would you kindly come to the wedding? I’ve prepared the invitation for you.”
Mr. Holmes : “So, that’s why you are shining this morning. What date would that be, David?”
David : “In September 14th 2014, sir.”
Mr. Holmes : “Let me check my schedule first. Mmh … David, I am so sorry, but I am afraid I will be out of town that day. I cannot come to your wedding day.”
David : “That’s too bad, sir. I do hope that my wedding can be attended by colleagues and my Boss.”
Mr. Holmes : “Yes, that is a pity, but I cannot cancel my schedule. Anyway, I congratulate you for the marriage thing, David. I hope you will have a happy marriage life.”
David : “Thank you very much, sir.”

Besides congratulation, another expression shown in the text is “invitation”; which phrase expressed it?

a. Would you kindly come to the wedding?
b. I’ve prepared the invitation for you
c. Yes, that is a pity
d. What date would that be, David?
e. but I am afraid I will be out of town that day

please help me.. thank u