Answer:
man I don't think there will be someone who will answer this question
The correct answer is A. luxuries
There are two categories, needs and wants. Needs are essential items that we need to survive. Wants are things that we want and are often called luxuries. You don't need them to live but you want to have them and it's useful sometimes to have them.
A population trend is changes over time and can include changes in behavior
Culture is the answer! Hope this helps!:))