Problem:
In how many ways can a supermarket chain select 7 out of 19 possible sites for the construction of new supermarkets?
a. P (19, 7) = 55,198
b. C (19, 7) = 50,388
c. C (19, 7) = 50,668
d. P (19, 7) = 45,578
Additional Information:
This question is from Mathematics as well as it is about selecting 7 out of 19 possible sites for constructing new supermarkets.