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Environmental engineers are using data collected by weather data centers to learn how climate affects the sea ice. Of 511 ice melt ponds studied in a certain region, 104 were classified as having "first-year ice". The researchers estimated that about 20% of melt ponds in the region have first-year ice. Estimate, with 90% confidence, the percentage of all ice-melt ponds in the region that have first-year ice. Give a practical interpretation of the results. Construct a 90% confidence interval around the sample proportion of ice melt ponds with first-year ice. (OD) (Round to four decimal places as needed.) Interpret the confidence interval practically. Choose the correct answer below. O A. Since 20% is in the interval, one can be 90% confident the true proportion of ice melt ponds in the region with first-year ice is 20%. O B. One can be 90% confident the true proportion of ice melt ponds in the region with first-year ice lies at the mean of the above interval, rather than at 20%. O C. One can be 90% confident the true proportion of ice melt ponds in the region with first-year ice is within the above interval, though it is probably not 20%. O D. One can be 90% confident the true proportion of ice melt ponds in the region with first-year ice is within the above interval, and there is a 90% chance it is 20%. O E. Since 20% is not in the interval, one can be 90% confident the true proportion of ice melt ponds in the region with first-year ice is not 20%