Answer:
c. a building would be a fixed resource in the short run.
Step-by-step explanation:
A fixed resource is a factor of production that doesn't vary with output. E.g. building
A variable resource is a factor of production that varies with output. If output increases, variable resources increases. E.g. labour, cheese and other wholesale food items.
Output is what is produced. E.g. the food produced by the restaurant is the output.
I hope my answer helps you