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.
Answer:
you are gonna need to put more point for anyone to write an essay for you.
Explanation:
1. she went to africa on a special project. it was to learn more about the chimpanzee.
You spelled under statement underestatement
