A and D I think. Hopefully this helps!
They ditched you and ran to me
After a thorough research, i found out that the underlined words are "worn by celebrities." So the underlined phrase is considered an adjective or adjectival phrase because the underline phrase "worn by celebrities" modifies the word clothing.
Answer:
It informs people that dont know what a volcano is if it is a regular mountain or an actual volcano.
(THIS IS NOT MY ANSWER I FOUND IT HERE ON THIS WEBSITE!!!)
Explanation: