Answer:
A. shut down her business.
Explanation:
Given that
The average overall cost per unit is $5
The average variable cost per unit is $3
And, the market price per unit is $2.50
Based on the above information
In the short run, the lydia should shut down her business as the total cost is more than the market price due to which the company is suffering the loss instead of the profit
Therefore the correct option is a.