Final answer:
In the short run, store employees are considered as variable inputs, and pizza ovens are considered as fixed inputs.
Step-by-step explanation:
Inputs in production can be classified as either fixed or variable. In the short run, fixed inputs are those that can't easily be increased or decreased, while variable inputs can be easily adjusted. So, in the given scenario, the store employees would be considered as variable inputs and pizza ovens would be considered as fixed inputs. This is because the number of store employees can be increased or decreased relatively quickly, whereas the number of pizza ovens is limited and not easily adjusted in the short run.