Answer:
The correct answer is letter "D": As juice and soda cost the same, Ana buys the drink that she expects will yield her the greatest benefit.
Step-by-step explanation:
Consumer equilibrium refers to the point where consumer gains maximum satisfaction from consuming a determined number of goods or services which makes the consumer reluctant to change his or her consumption pattern. For this to be possible, the products consumed by individuals must provide a higher yield than the forgone products. Usually, there no other factors influencing consumers' decisions implying the price levels of those products are the same.