A--You know the person (Henry) and the topic (paying for a movie ticket).
B--You know the people (the twins) and the topic (plans for their party).
D--You know the person (my mother) and the topic (lost an earring).
BUT for C there is a very vague sentence that makes you question: what is it that they wouldn't enjoy? So it is C.
Well, it is asking you to compare Sarah's limping to something.
There are many possible answers, just think of things that limp.
Sarah limped along the road like an injured dog.
Sarah limped along the road like someone with a broken foot.
Sarah limped along the road like an elderly woman.
I couldn’t believe have happy i was when i realized how special right now truly is.
ANSWER:
D. Verbal, informal
It is verbal as it states that the young man "sings a humorous song." As singing is a form of verbal communication, it is verbal.
It is informal as its content is comedic and for the purpose of entertainment.
Hope this helps! :)