Using the following data set of monthly rainfall amounts recorded for 10 randomly selected months in a two-year period, what is the five-number summary?
a. 0, 1, 3.5, 5, 8.
b. 2, 5, 5, 5, 0.5.
c. 0.5, 2, 5, 7, 8.
d. 0, 1, 5, 5, 8.