The function \[n(t)=\frac{ 300 }{ 1+299e ^{-0.36t} }\] describes the spread of a rumor among a group of people in an enclosed space. n represents the number of people who have heard the rumor, and t is measured in minutes since the rumor was started. which of the following statements are true? check all that apply.

a. there are 300 people in the enclosed space.
b. it will take 30 minutes for 100 people to hear the rumor.
c. the rate at which the rumor spreads speeds up over time.
d. initially, one person had heard the rumor.