Question

if the short - term inventory of the latest iphone is limited, and demand for it is very high, then: if the price the phone is fixed at official dealers/stores, there will be excess demand (shortage) all of these those people who are willing to wait in line for the official price are implicitly paying a much higher - than - official price with their time if the price is allowed to adjust in the secondary (resale) market, those sellers will be able to charge higher prices

Explanation:

When inventory is limited and demand is high, at a fixed - price official store, quantity demanded exceeds quantity supplied, creating excess demand. People waiting in line sacrifice their time, which has an opportunity cost equivalent to paying more than the official price. In the secondary market, with high demand and low supply, sellers can charge higher prices.

Answer:

B. All of these