One model of Earth's population growth is P(t)=64 /(1 + 11e^-0.8)where is measured in years since 1990, and Pis measured in billions of people. Which of the following statements are true?

A. In 1990, there were 5.33 billion people.

is increasing by a steady rate of 8 per

B. The population of Earth year

c. The carrying capacity of Earth is 64 billion people

D. The population of Earth will grow exponentially without bound