Answer: Thus, from the above scenario this test exemplifies a. validity
Step-by-step explanation:
What does validity of a test mean?
It is an indication of whether the test measures what it intended to measure or not .
When the test results show high relations between what was intended to measure and the actual results then there is high validity.
If there is no link between what the test intended to measure and the actual results then it has low validity which means it doesn't measure what it claims to measure.
This test exemplified validity because Betty approved it and stated that it measures what it claims to measure.