Of all the fish in a certain river, 20 percent are salmon. Once a year, people can purchase a fishing license that allows them to catch up to 8 fish. Assume each catch is independent. Which of the following represents the probability of needing to catch 8 fish to get the first salmon? a. 0.2
b. 1/0.2
c. 0.2^8
d. 0.2(0.8)^7