Q2 - The average cable television company

[Aquamarine]

I was stuck between B and C (I thought both could be answers) and finally chose C. But the answer is B. The more I looked into, the more I had no idea why C was wrong.
Can anyone explain me why B is correct and C is wrong?

[maryadkins]

The core is:

New fiber-optic lines will provide 100-150 channels for the same price as cable companies charge for 50

-->

New fiber-optic lines will replace cable companies in a few years

But what happens if there's some other barrier to the new fiber-optic lines replacing the old cable? What if it's a huge pain, or the channels aren't the channels people want or something?

(B) helps get rid of this problem by telling us that the new channels will offer the shows that people mostly want to watch on the cable networks. In other words, nothing will be lost when someone switches.

(C) doesn't strengthen. If anything, it weakens, because if the cable companies respond by increasing their channels, maybe people won't even want to switch!

(A) contradicts a premise, which is that it'll be cheaper to have the new lines, but regardless, it would weaken if anything.

(D) is irrelevant, and (E), at best is irrelevant and at worst might weaken.

Hope this helps!