Does Crusoe's opportunity cost of a pound of fruit increase as he spends more time picking fruit?

Question:

Does Crusoe's of a pound of fruit increase as he spends more time picking fruit? Explain why or why not.
Opportunity Cost
Opportunity cost is the profit lost when one alternative is selected over another. The Opportunity Cost refers to the expected returns from the second best alternative use of resources that are foregone due to the scarcity of resources such as land,...