Hello!
Your essay looks very well written, however there are some indents and spaces where there doesn’t have to be, but I don’t know if that was your choice. You also have a couple letters capitalized when the shouldn’t be, so just check over your essay again.
<span>My older sister's name is Dia, and she is studying to be an engineer.</span>
I think it’s “B” because a predicate is the part of a sentence or cause containing a verb and stating something about the subject.
