What is the substitution effect in the context of labor supply?

• A. The tendency to work less as wages increase due to higher opportunity costs of leisure.
• B. The tendency to work less as wages decrease due to lower opportunity costs of leisure.
• C. The tendency to work more as wages increase due to higher opportunity costs of leisure.
• D. The tendency to work more as wages decrease due to lower opportunity costs of leisure.

Answer: (C)