The correct answer is D. It is a reference to the poets deceased father.
This sentence is incorrect because it is a run-on sentence. This means that it should be broken into two separate sentences:
Ladybugs are also called lady beetles. In Europe, they are called ladybird beetles.
It's easy to catch this mistake by either reading the sentence out loud and listening for a natural pause, or by looking for one subject and one verb per sentence (Ladybugs are; they are).
C, the antagonist. Unless you're talking about the anime Kill Me Baby. Then it's D, a minor character. But otherwise, don't mind that last sentence, The answer is C.
The guy was suffering in life but he still had love and care for his
sister to say happy birthday. It shows how mental health is not affected
by how you live your life. It's not affected by a lavish life but
rather its what your mind thinks is what your mental health leads to.
YOU'RE SO WELCOME
I LOVE YOU
<3
IM CREEPY
BUT IM SMART
HEHEHEHEH
The story strongly suggest themes of human relationship and (possibly) a heist or job that seems to be involved.