What do you mean? are we supposed to have read that book or is that something else?
Answer:
Mobile phone we could communicate
Explanation:
Focus your attention. You don't want to be on your phone or watching tv while someone is talking to you.
Answer: D
Explanation: "less" almost always qualifies as an adjective, because it's describing a noun, that being support, which is a thing/idea.
You would use it as an adverb if you were using it to describe or add more information to a verb. Ex. "I've been trying to work <em>less</em> on the weekends." Work is a verb, so less would qualify as an adverb here.