confidence interval

According to a 2018 poll, 45% of adults from a certain region were very likely to watch some coverage of a certain sporting event on television. The survey polled 1,200 adults from the region and had a margin of error of plus or minus 4 percentage points with a 90% level of confidence. Complete parts (a) through (c) below. a. State the survey results in confidence interval form and interpret the interval The confidence interval of the survey results is (. (Round to two decimal places as needed.) Interpret the interval. Choose the correct answer below. O A. There is a 90% chance that the percentage of adults in the region who were very likely to watch some of this sporting event on television is within the confidence interval. O B. 90% of the 1,200 adults from the region that were polled fell within the confidence interval O C. We are 90% confident that the percentage of adults in the region who were very likely to watch some of this sporting event on television is within the confidence interval. O D. The confidence interval will contain the percentage of adults in the region who were very likely to watch some of this sporting event on television 90% of the time b. If the polling company was to conduct 100 such surveys of 1,200 adults from the region, how many of them would result in confidence intervals that included the true population proportion