From the words or group of words lettered A to D, choose the word or group of words that best completes each of the following sentences. I'll try to convinc...

The correct option is "best". This sentence means that the speaker will put forth their best effort to persuade or influence the person they are referring to. In this context, "as" is used as a comparative adverb, meaning that the speaker will attempt to convince the person to the greatest possible extent. "Best as" is not grammatically correct in this sentence, and "the best" is not necessary because "best" already indicates that the speaker will use their utmost effort. "Well as" is also incorrect because "well" is an adverb that describes the manner in which something is done, but it does not fit in this context.