Use the following to answer questions: 
-(Table: Total Cost and Output) Look at the table Total Cost and Output, which describes Sergei's total costs for his perfectly competitive all-natural ice cream firm. Which of the following is a point on Sergei's short-run supply curve?
Definitions:
Basic Research
Investigation and study conducted to increase fundamental knowledge and understanding of physical, chemical, or functional mechanisms, without immediate practical application.
Temporal Precedence
A principle in establishing causation indicating that the cause must occur before the effect.
Covariation
The measure of how much two variables change together, indicating the extent to which they are associated.
Alternative Explanations
Entails considering different reasons or theories that could explain observed data or phenomena, beyond the primary hypothesis.
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