Answer:
The following are the answer to this question:
Explanation:
In the given question the correct choice is missing, that can be defined as follows:
In option A, It uses the development of matched-pairs.
In option B, In the score ranking, it uses the test score for both the test.
In option C, This type of variable is the form of presentation, which allows you a treatment, which consists of lectures thru lectures as well as a presentation offering a lesson.
In option D, The answer is students.
In option E, It is used to eradicate prejudice concerning which communication demonstration was first used.
