A card store set up a table at the front of the store for a survey with an employee at the table. Every customer who came into the store was asked to fill out a survey. The purpose of the survey was to determine if customers would prefer, and pay the extra charge, for postage-paid envelopes. Would this be an appropriate sampling technique?
A.
No, because the sample is not random and is dependent on customers stopping at the table.

B.
Yes, because the sample is fairly small, random, and representative of customers who purchase sympathy cards.

C.
Yes, because the sample is fairly large, random, and representative of the population.

D.
No, because the sample is too large and should have online surveys instead of a table survey.