Question

If T = {positive integers} and subset W = {5, 10, 15, 20...} What is W?

Answer 1

{1, 2, 3, …}

{positive integers except those divisible by 5}

{5, 10, 15, 20, …}

{ }

Answer 2

answer choices above

Answer 3

isn't W already given to be W = {5, 10, 15, 20...}
the 3rd choice ?