Answer :
Abysmal is an adjective which refers to something that is extremely bad or terrible. It think the correct answer would be the first sentence. The sentence that uses the word correctly would be:
While breaking one pencil during the SATs is bad luck, breaking six pencils is downright abysmal.
While breaking one pencil during the SATs is bad luck, breaking six pencils is downright abysmal.
Answer/Explanation:
while breaking one pencil...
is the right answer