A word or phrase that modifies a word not included in the sentence is a B. dangling modifier.
For example:
Knowing that it was getting cold outside, the pizza tasted very good.
Its either B or D...... B if the whole story is about him trying for the team and D if that is a big part of the story. Hope I Helped!
Hyperbole
If don't know what it means its best to start of with what you do know
Process if elimination.
It's not a simile because it has no like or as.
Its not Personification cause its not giving the object human features.
And its not metaphor cause its not literally Applicable. I'm assuming.
So that just leaves you with hyperbole.
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.
