Hi! Could someone explain this to me?

In a study of cell phone use and brain hemispheric dominance, an Internet survey was e-mailed to 2373subjects randomly selected from an online group involved with ears. 981 surveys were returned. Construct a 99% confidence interval for the proportion of returned surveys.

Part 1

a) Find the best point estimate of the population proportion p.

(Round to three decimal places as needed.)

Part 2

b) Identify the value of the margin of error E.

(Round to three decimal places as needed.)

Part 3

c) Construct the confidence interval.

(Round to three decimal places as needed.)

Part 4

d) Statement that correctly interprets the confidence interval. Choose the correct answer below.

A.There is a 99% chance that the true value of the population proportion will fall between the lower bound and the upper bound.

B. 99% of sample proportions will fall between the lower bound and the upper bound.

C.One has 99% confidence that the sample proportion is equal to the population proportion.

D.One has 99% confidence that the interval from the lower bound to the upper bound actually does contain the true value of the population proportion.