Hello I need help identifying the following answers for these two questions.

A random sample of 25 with a mean 96 is taken from a population of 1000 that is normally distributed with a standard deviation of 30. The 95% confidence intervals for the unknown population mean is: Select one: O a. 96 + 5.50 O b. 96 + 9.87 O c. 96 + 15.48 O d. 96 # 11.76A random sample of 25 with a mean of 80 and a standard deviation of 39 is taken from a population of 1-390 that is normally distributed. The 99% confidence interval is Select one: Q a. 63.21%: 95.132 0 b. 69.519 to 99.481 0 c. 69335 to oozes ' ' 61615 to 92.334