It would be A because it is in chronological order a.k.a order that works with the timeline.
The abbreviation that's shown after a word in the dictionary tells you what part of speech the defined word is.
The word could be defined as a:
noun (n)
pronoun (pron)
adjective (adj)
adverb (adv)
verb (vb)
conjunction (conj)
preposition (prep)
interjection (interj)
Hayo um I would say to go with C)to happen to, usually something bad or negative but I'm not sure just trying to help
Hope your having a nice day