A 99% confidence interval is created to determine the population mean weight of college textbooks. The resulting interval is (2.45 lbs., 6.56 lbs.) based on a sample of 120 textbooks. Which of the following is the value of the margin of error for this interval?
(A) 4.11
(B) 4.505
(C) 2.055
(D) 0.798
(F) 2 575