C) verbs and adverb phrases
It's a nonessential word, clause, or sentence added to an already grammatically complete sentence. It's most commonly set off by brackets, but it can also be set off by commas or dashes.
Example:
My mother went to the supermarket and picked up some strawberries (my favorite fruit) earlier today.
Technology can greatly advance our knowledge in sciences, such as making the medical process more effective and speeding it up.
Hey frnd
Ellipses are punctuation marks consisting of 3 dots.It saves space that's less relevant.
So I think it's option b.
Hope this helps u frnd