A sampling distribution of a statistic (e.g., the F score) is created by:

a) Obtaining only one random sample from a large population of values and calculating the F score in that sample.

b) Calculating the F score in the sample collected by the researcher.

c) Obtaining a large number of random samples of values from a large population of values and calculating the F score in each of those samples.

d) Comparing the F score of two independent samples.

Which is the best possible answer and why? I require an explanation. Thank you!