.The principal at a local high school asked 100 randomly selected students how many minutes they spend completing homework each night of the week. The mean time students in the sample spent on homework each night was 72.5 minutes. Assume the population mean time spent on homework each night is 81.2 minutes. Identify the population and parameter.

A) Population: 100 randomly selected students, Parameter: average time completing homework = 72.5 minutes

B) Population: 100 randomly selected students, Parameter: average time completing homework = 81.2 minutes

C) Population: all students at the high school, Parameter: average time completing homework = 72.5 minutes

D) Population: all students at the high school, Parameter: average time completing homework = 81.2 minutes