Let a and b be non-zero integers. which of the following is always true about the ratio a/b?

C

Step-by-step explanation:

It will always be a rational number regardless of the value of A and B.  Even if say A = 4 and B = 2, we get

4/2 = 2

2 is still a rational number because the definition of a rational number is

any 2 real numbers a, and b, written in the form a/b, where b cannot equal zero.  

So 2 can be written as 2/1

This still equals 2, but it is now a rational number because 1 is not equal to zero

cluster sampling.

step-by-step explanation: