Identify the most specific set to which each of the following numbers belongs:(5 points)

A. -9
B. 47−−√
C. 0.121212...
D. 0
E. 144−−−√
1. Irrational numbers
2. natural numbers
3. rational numbers
4. integer
5. wholes numbers

A. -9: Integer

B. 47-√: Irrational numbers
C. 0.121212...: Rational numbers
D. 0: Integer
E. 144-√: Irrational numbers