The answer is services. The other three are all factors of production. You need land or a place to create your goods and services. You have to have capital to run your production and sustain it. Then you need labor or people who will produce the goods and services that you are going to sell.
<span>Aggression
Good luck!</span>
Personally, I would think it’s B. but again, you would just have to look over their standards to figure out the answer