Write the next sentence in this paragraph:

How to treat your customer while serving them
When the customer approaches your till point, greet them nicely.
This means you should acknowledge the customer with eye contact. Say " hello " and smile.

Select from the following. A. Apologise for any wait, no matter how short. The customer might not understand why they have had to wait. B. Also greet them in a professional manner. Always state your name, address, and similar things. C. Offer him or her a fresh drink once in awhile. Remember to shake each customer's hand. D. If you don't meet their smile they'll get bored and start saying no. To greet the customer again, do a brief " hi " and introduce them to your horde.
A.