Question

Which of the following is a subset of the set
A: {adults between the ages of 21 and 35}

{adults between the ages of 23 and 30}

{an adult 40 years old}

{adults under 21}

{adults over 35}

Answer 1

B?

Answer 2

I don't understand the question..

Answer 3

See adults between the ages 23 and 30 will have the elements that is present in the set 21 to 35..

So, I will go with A..