This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to greet customers arriving in a store
Smile when you greet your customers.
You want your customers to feel welcome, and that starts with your body language. Stand tall, smile, and approach them briskly.

Pick your answer from:
[A]. Your smile will greet them, and will help establish a friendship between you and them. Hand shake your customers hand-shaking is easy to do, and because it's a handshake, it makes nearly all people accepting a handshake feel good..
[B]. Be generally friendly and always remember to smile. Greet your customers! If you know your customers by name, you'll be able to remember them even if they don't speak english..
[C]. This helps your customers feel at ease, and will likely make you more willing to help them out in the future. While smiling can be your main emotion or reaction, a genuine smile comes from within..
[D]. Everything about your manner should say " i'm glad you're here! " Dress professionally. How you look is a key part of your greeting..
The answer is:
[D].