The correct answer is D. 4123.
The word “will” is a modal verb that expresses intention or willingness. The word “write” is a verb that means to put words down on paper or a computer screen. The word “he” is a pronoun that refers to a male person. The word “not” is a negative word that means the opposite of something.
In the sentence “Will he write?”, the word “will” expresses the speaker’s intention or willingness to write. The word “write” is the main verb of the sentence. The word “he” is the subject of the sentence. The word “not” is a negative word that means the opposite of something.
The sentence “Will he write?” can be paraphrased as “Is he going to write?” or “Does he intend to write?”.
The other options are incorrect because they do not make sense in the context of the sentence. Option A, 1423, is incorrect because the word “not” comes before the word “he”. Option B, 3214, is incorrect because the word “write” comes after the word “not”. Option C, 3142, is incorrect because the word “he” comes after the word “write”.