Farhan : So, how long has it been since the first publishing of your first novel?

Yola : It’s been 3 weeks since then.

Farhan : So, how many copies have been sold this far?

Yola : Thank God. Many people seem to like it very much. Since the first publishing 3 weeks ago, there have been over 500 copies sold.

Farhan : Splendid! I’d like to congratulate you on your success at your first time publishing your novels.

The underlined sentence express?

A. Congratulating someone

B. Giving compliment

C. Persuading someone

D. Giving Gratitude

E. Apology to someone