Answer:
B) Cell phones can have a beneficial and educational role in schools.
Explanation:
Cell phones can have a beneficial and educational role in schools. This statement is the claim; all other statements provide evidence to support this claim.
This is essentially language change at work. Do you know how Shakespeare sometimes sounds "weird" to us? that's because English has changed since then.
Language change is not abrupt, but gradual, and while the change takes place sometimes two forms are used: so while it is likely that in years to come only dreamed will be correct, and in the past only "dreamt", currently the change is not complete and both are correct.
You have to understand positive, comparative, and superlative forms of adjectives to do this. The positive form is the simple form of an adjective as applied to the sentence. The comparative form refers to the form of an adjective that relates it to other possible intensities of the adjective; it it used to say to what extent an adjective applies. The superlative form states the adjective in the most prominent extent. Alright, now let's look at the answers.
Answer A is incorrect because it should be "cheap, cheaper, and cheapest."
Answer B is incorrect because it should be "drowsy, drowsier, and drowsiest."
Answer C is correct.
Answer D is incorrect because is should be "troublesome, more troublesome, and most troublesome."
Answer: C. good, better, best
Hope this helps!