When a Consumer Is Purchasing the Best Combination of Two

Multiple Choice

When a consumer is purchasing the best combination of two goods, X and Y, subject to a budget constraint, we say that the consumer is at an optimal choice point. A graph of an optimal choice point shows that it occurs

A) along the highest indifference curve.
B) along the lowest budget constraint.
C) where the indifference curve is tangent to the budget constraint.
D) All of the above are correct.