Answer:
A conclusion
Explanation:
this conclusion could be what the author learned after the event in the narrative.
A conflict in a story creates and drives the plot and story toward. The conflict in a novel is usually something happening between two “people” or forces. If you can check my page and answer some of my questions that would be sweet.
Since a participle takes the form: verb + -ing, the only word in this sentence which has such a form is B, 'challenging'. 'Puzzle' is a noun, 'crossword' is an adjective, 'created' is a verb.