With respect to the sampling issues in marketing research, we explained the science behind public polls. Which one of the following statements is false?

Question $27$ options:

probability sampling is required.

the larger the target population, the larger the sample size is needed for representativeness.

for random sampling, the margin of error depends on the sample size.

for random sampling, it is possible to query a few hundred or thousand people and use that data to reasonably gauge how the general public might vote for a presidential candidate $.$