I think it might be A because the part, also and ,marine is a little confusing.
Answer:
The answer is D) To indicate his humorous intent.
Explanation:
The words that best reflect Lincoln’s formal diction are the ones in the second option: brought forth.
To bring forth means to cause something to happen or be seen or known. The phrase is usually used in formal contexts or in literature.
All of the other options have words that are not considered formal and can be considered of every-day use.
The compound subject is "Young Juan and his father." Both Jaun and his father are the subjects of the sentence, but because there are two of them it means there is a compound subject.