A car manufacturer is looking to compare the sales of their sedan model last year to the sales of the same model 15 years ago at various dealerships. The manufacturer is weighing two different proposals to conduct the study. Under the first proposal, the manufacturer randomly samples 10 different dealerships for their sales numbers last year and randomly selects another 10 dealerships for their sales numbers 15 years ago. In the second proposal, the manufacturer randomly samples 10 dealerships for both sets of sales numbers. Are the samples in these proposals dependent or independent? Select the correct answer below:-
A. The samples in the first proposal are independent while the samples in the second proposal are dependent.
B. The samples in the first proposal are dependent while the samples in the second proposal are independent.