Kizspy Question: 23
(Choose 1 answer)
Which of the following is not an example of a barrier to entry?
A. DeBeers owns a unique plot of land in South Africa, under which lies the a large deposit of diamonds in the
world
B. Pfizer company obtains a patent for Covid vaccine
C. Maria Carey obtains a copyright for her original song
D. An entrepreneur opens a popular new restaurant
