Question

What is the union of the two sets A={1,5,8,12,17} and B= {5,17}?

A. {1,5,17}
B. {1,5,8,12,17}
C. {5,14}
D. {17}

Answer 1

Do you know what union means?

Answer 2

The union of two sets is a set that contains every element that is in one set or in the other set.
Write each element only once.
Now look at your sets.
Create a new set, and start filling it with every element you see in set A or in set B. Do not write an element more than once.

Answer 3

d?