Assume Joseph Spends His Entire Income on X and Y,and

Multiple Choice

Assume Joseph spends his entire income on X and Y,and his indifference curves have the usual convex shape.If Joseph maximizes his utility,then

A) he spends his entire available income.
B) there are other bundles that are preferred at the current price ratio.
C) the slope of his indifference curve is greater than the slope of his budget line.
D) the slope of his indifference curve is smaller than the slope of his budget line.