Answer:
D. Formal
Explanation:
Let us examine each option carefully.
Every word contributes to the meaning of the sentence with no redundant or unnecessary words. This eliminates option A, i.e., 'wordy'.
The sentence is eloquent and does not have any breaks in its flow anywhere. Hence, it is not 'choppy'.
It is written in proper Standard English grammar, and is a complete sentence without any breaks or usage of vernacular or slang words, or any other causal mode of communication such as emoticons or short forms of words (contractions), which makes it a formal and not a casual sentence.
