50.Which of the followings is generally defined as the extent to which an assessment can be shown to produceoutcomes which are an accurate reflection of the learner’s true level of ability and is concerned with theappropriateness and meaningfulness of the inferences made when using the test results within a particularsocial or educational context?
(A) Reliability.
(B) Rationality.
(C) Versatility.
(D) Validity.