The answer is A.
Rings surround Jupiter, Saturn, Uranus, and Neptune. These planets are all large planets.
The most likely hypothesis that you can derive base on the observation that the wash enzymes did not perform as expected is that the wash enzymes's three dimensional structure of protein may have been altered. Altering its structure may cause the enzyme to perform differently as before even if it has the same physical feature.
Genes are arranged in a linear sequence on a chromosome.
