The correct answer is: [C]: " allele " .
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Scientists have several means of communicating the result of their research study with other scientists. One of this method is publishing. Scientists can publish their research findings in peer reviewed journals, this will allow other scientists to read about the study and its is outcomes.
Scientists can also present the results of their research study at national and international conferences.
A and D seem like the best answers
The disease is mainly caused by a lack of a slippery substance in the lungs called surfactant. This substance helps the lungs fill with air and keeps the air sacs from deflating. Surfactant is present when the lungs are fully developed.
https://medlineplus.gov/ency/article/001563.htm
