Answer:. Kent is most likely to infer that "THE TEST HAS POOR EVIDENCE OF RELIABILITY"
Explanation: For Kent to discover that a particular test is not stable or consistent over time, that means that the test result changes with time. Therefore the test result is not reliable and cannot be categorized.
According to evidential proof of Truth, which states that a statement can only be true, if they is a valid evidence to that statement. Because the result of this test changes with time, they will be no valid evidence to proof a result from such test to be true. This shows that the test has poor evidence to rely on the result to be true.