Answer:
The long run is best defined as a time period
- during which all inputs can be varied.
One thing that distinguishes the short run and the long run is
- the existence of at least one fixed input.
Explanation:
On the long run, all productive inputs can be changed and/or altered. that includes fixed costs like equipment and machinery, building facilities, processes, wages, etc.
On the short run, at least one of the inputs used to produce our goods or services cannot be changed, e.g. wages tend to be sticky, fixed costs (depreciation of equipment and machinery, buildings, etc.)
