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.
When you compare two texts, you do more than find what is similar or different. You should also draw conclusions about how the techniques the authors use accomplish their purposes.
Answer:
the theme of a story is the idea that connects the story parts
I believe C would be the right option for this question
I'm pretty sure the last one is incorrect as it become a constitution monarchy not a ruling power of England.
