The correct answer is D. 4213.
The word “him” is in the objective case, which is used for the direct object of a verb or the object of a preposition. In this case, the word “him” is the direct object of the verb “consider.” The word “consider” is a transitive verb, which means that it takes a direct object. The word “trustworthy” is an adjective that describes the person who is being considered. The word “I” is the subject of the sentence.
The other options are incorrect because they do not follow the rules of grammar. Option A, 1423, is incorrect because the word “him” is in the objective case, but it is being used as the subject of the sentence. Option B, 3412, is incorrect because the word “trustworthy” is an adjective, but it is being used as the subject of the sentence. Option C, 2314, is incorrect because the word “I” is the subject of the sentence, but it is being used as the direct object of the verb “consider.”