The two subjects of the sentence are Colonel Lloyd and his "finely cultivated garden".
The correct answer is D. Subject
The subject is the person/thing that does the action. In his case, it contains something which makes it the doer of the action of containing.
Answer:
2We laughed, cheered, and sighed as we watched the movie.
3_We went home feeling a little better.
_1 We arrived and found a place to view the free movie
We bought candy and popcorn to eat during the movie.
"A large wave caught him and flung him with ease and supreme speed completely over the bpoat and far beyond it."
I think it would be answer D, to introduce an idea because it's introducing the idea of a Venus Fly Trap's diet.