Mood....if it is included in your options
(A) Wireless Modems is the answer. This is the best choice! See if you think about it, you will also come to the conclusion that the answer is (a).
The correct answer is b. if i'm not mistaken, that rose is the reddest of all.
This is the correct answer because reddest is a superlative form and does not require MOST to be used.
Explanation:
it depends on what type of situation are you using it and or the subject you are asking for