column A
1. the objects contained in the set.
2. a well-defined group or collection of objects that share common characteristics.
3.it is represented by three dots which is use to indicate that a set has many/infinite elements.
4. a symbol use to group the elements of a set.
5. a symbol used in represent a set.

column B
a. capital letters
b. set
c. ellipsis
d. { }
e. elements ​