Match the statements defined below with the letters labeling particular numbers. Use all the letters. Of course a natural number is also a rational number, for example. However, there is only one correct matching that uses all five letters A through E.
1.
is a rational number
2.
is neither positive nor negative
3.
is a natural number
4.
is an integer
5.
is an irrational number
A.
B.
C.
D.
E.
In order to get credit for this problem all answers must be correct.