Determine whether the samples are independent or dependent. Upper A data set includes the weight of 140 students before and after their first year of college. Choose the correct answer below.
A. The samples are independent because there is a natural pairing between the two samples.
B. The samples are dependent because there is not a natural pairing between the two samples.
C. The samples are dependent because there is a natural pairing between the two samples.
D. The samples are independent because there is not a natural pairing between the two samples