Answer:
A. Concurrent validity
Step-by-step explanation:
Concurrent validity- It refers to the degree to which the results of a specific measurement or test corresponds to those of a formerly established test or measurement for the same construct. This is mostly used in education, social sciences, and psychology.
Example: The researcher gives students the latest test, designed to solve mathematical questions. After that, they compared the test scores already done by the school, a reliable and recognized judge of mathematical ability.