Which of the following statements is always true?
A 
is a rational number between x and y.
B 
is a rational number between x and y.
C 
is a rational number between
x and y.
D 
is a rational number between x and y.
Which of the following statements is always true?
A is a rational number between x and y.
B is a rational number between x and y.
C is a rational number between
x and y.
D is a rational number between x and y.