Suppose the Population of a Country Between 1921 and 2000

Multiple Choice

Suppose the population of a country between 1921 and 2000 is given by the model Population million people
Where t is the number of years since the end of 1900. What was the average population of the country from the beginning of 1990 through the end of 1999? Round your answer to the nearest tenth.

A) 90.5 million people
B) 89.8 million people
C) 39.3 million people
D) 90.0 million people
E) 88.8 million people