What will this command return?

{x for x in range(100) if x%3 == 0}

1.  a set of all the multiples of 3 less then 100
2.  a set of all the number from 0 to 100 multiplied by 3
3.  a list of all the multiples of 3 less then 100
4.  a set of all the multiples of 3 less then 100 excluding 0

Correct Answer:

•  a set of all the multiples of 3 less then 100