Which of the Following is a random sample?

Group of answer choices

Rebecca used an email poll to survey 100 students about how often they use the internet.

20 customers at a chicken restaurant are surveyed on their favorite food.

A radio DJ asks the first 10 listeners who call in if they liked the last song.

A polling organization numbers all registered voters, then generates 800 random integers. The polling organization interviews the 800 voters assigned to those numbers