A Clarity because clarity means the same as "how clearly". Or the measurement of "how clear something is", like the clarity of water. If you practiced new Vocab words with good clarity or with clarity, it means you understand them and can spell them well.
The first box is a dangling modifier. The second is a clause. The last is a phrase. (Answers going from top to bottom) :)
Words used to describe people, items, places, events, or more are called adjectives