By recording the noise of crinkled wrappers as they were slowly stretched out in an otherwise silent chamber, and then digitizing and analyzing the sound emissions on computers, a team of scientists found the noise not continuous but consisted of individual bursts or pops just thousandths of a second long.
(A) digitizing and analyzing the sound emissions on computers, a team of scientists found the noise not
(B) digitizing and analyzing the sound emissions on computers, a team of scientists found that the noise was not
(C) digitizing and analyzing the sound emissions on computers, a team of scientists found the noise not to be
(D) the sound emissions were digitized and analyzed on computers, a team of scientists found that the noise was not
(E) the sound emissions were digitized and analyzed on computers, a team of scientists found the noise not to be
POE: Try to spot the parallelism among list items-recording,digitizing,analyzing
Hence option D,E are straightforward out because of the lack of parallelism.
Its between A,B & C only
Look carefully in these options there is Idiom not X but Y
So X and Y should be parallel
Only in Option B, elements X & Y are parallel(both are verb phrases)
Hence B is the correct answer.
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