Final answer:
During an economic upturn, caviar, with rising demand, is a normal good, while hummus, experiencing a decrease in demand, is an inferior good. The correct answer is option (B).
Step-by-step explanation:
The changes in demand for caviar and hummus during an economic upturn provides insights into the nature of these goods. When consumer income rises, if the demand for a product increases, it is classified as a normal good. Conversely, if the demand decreases, the good is considered an inferior good. Given this information, caviar is a normal good because its demand increases with an increase in income. On the other hand, hummus is an inferior good because its demand decreases as consumer income rises.
The correct answer to the question is:
B) Caviar is a normal good and hummus is an inferior good.