Answer: C) Tenemos
The verb tener (to have) needs to be conjugated in the 'we' form, because the speaker is talking about him/herself plus others.
I'd choose B:
1. Muchos gusto - Nice to meet you (in the first sentence people are introducing themselves)
2. Hasta luego - See you soon (in the second sentence people are saying goodbye)
Hope it helped,
BioTeacher101
El número one son marrones
your answer is D hope it helps