I think it is c because abrasive can be to scrape and abound can be to exist in great quantities or numbers.
Answer:
you can ask where they come from and if they are a .gov or another trusted source like that
Explanation:
The clause <em>if you ask her </em>is an adverb clause.
Since similarly to adverbs, these clauses answers some questions such as where, when, or in this case, under what condition, then this means that they are called adverbial clauses.
The third excerpt is structured correctly.
A) Romantically interested because the word "keen" means that the boys in her class liked her.
Hope this helps.
