fiction books are alphabetical order by the author's last name.
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.
Component Definition: A part or element of a larger whole
Using strategies to comprehend a text.
They went blind by getting there eyes pecked out