If Jeff's Wage Rate Rises,he Decides to Work Fewer Hours

Multiple Choice

If Jeff's wage rate rises,he decides to work fewer hours.From this,we can infer that

A) for Jeff, the substitution effect is greater than the income effect.
B) for Jeff, the substitution effect is equal to the income effect.
C) for Jeff, the substitution effect is less than the income effect.
D) Jeff is a nitwit.