Answer:
"Buy the new model of that tablet , its light and very fast."
Explanation:
The you must part doesn't make it sound commanding. It has to start with a verb. The verb here is 'Buy'.
I think this is the right answer. I hope this helps.
Main topics, bolded worlds, key terms, highlighted elements, and words in uppercase letters.
I would choose the last choice, D. Adverbial.
Adverbial phrases include two or more words that serve as adverbs. So "in an hour or two" can be classified as an adverb phrase.