Hmm i assume you mean in spanish right? probably go with "Hola como estas ustedes, mi nombre es (insert name here). however i recommend waiting for someone a little more knowledgeable as i am from a less fancy part of Mexico and that's just how everyone is "polite" around my home town hope this helps
Answer: le
explanation: you say le when you are talking about person A to person B and you are doing something for that person A
I'm pretty sure it's C because it translates to They are____. They need to eat.