2. It is the overall set of all the elements under discussion.
B. Elements B. null set C. subset D. universal set
3. List all the elements in A = {vowels in the word
"Mathematics")
B. {a,e,a,i} B.{a,e,i) C. {e,i) D.)
4. Which of the following is a well-defined set?
E. {a happy child)
F {a popular actress)
G. fa favorite book by my classmate)
H. {a grade 7 Mathematics book in the library)​