Educational television is a contradiction in terms. While a classroom encourages social interaction, television encourages solitude. School is centered on the development of language, but television depends upon constantly changing visual images. And in a classroom, fun is merely a means to an end, but on television it is the end in itself.
Conclusion: Educational television is a contradiction in terms, means it is not what it is said to be.
Premise: Comparison between Classroom and Television is made and because television is not following classroom it is not valid means.
Upon which one of the following assumptions does the author rely in the passage?
(A) The classroom should not be a place where anyone has fun.// Can't be assumption, Also remember never to take options with should as assumption//
(B) Only experiences that closely resemble what takes place in the school environment can be educational.//Correct: Creating relationship between premise and conclusion//
(C) Television programs reinforce some of the values of the school environment.// 'Some' is very vague term so most of the time it is wrong and in this case if television program reinforce some of the values of school then it is against the conclusion//
(D) Educational television programs are qualitatively better than most other television programs.// Out of scope. We are not concerned about other television programs//
(E) The potential of television as a powerful learning tool has not yet been realized.// Out of scope. Not a concern of this argument//
Hope this helps..