Answer:
its 2
Explanation:
it cant be 1 thats too short and its just not 3 or 4 because it wouldnt make sense
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.
The answer here would be answer choice C. When reading this statement out loud, one can tell that there is a "gap" at the beginning between "he" and "is". It starts up an entirely new statement without any punctuation, so we can tell that this is the only place that our semicolon deserves to go.
