Answer: Adjective.
Explanation:
"Complex" is used here to describe the group of apartments. So, it qualifies for describing a noun, like the definition of adjective. Let me know if you got it right.
the answer will be c because of the answer in the passage also i got that answer wrong. The right answer is C
I believe "You will eat lunch / at school / with friends" most clearly develops an argumentative tone because of the 'will'. Sounds like someone's trying to force the person to do that and the person may try to argue back because the will makes it sound like they have no choice in the matter.