It should be the first choice.
Answer:
The angry mob went on a breaking cars, windows, adn robbing local stores.
Explanation:
D. look up the unfamiliar word in a dictionary to check its meaning.
Context clues will always provide hints with regard to helping readers figure out what a word or term means. However, after figuring out what a word means based upon context clues (which should only be considered the first step), what you should do is look up the word in question. This should be done so you could check your interpretation as well as help you commit the new word or term to memory.
i'd say adjective not verb it decribes something and is not it a form of action so b adjective