Which of the Following Statements About Air as an Example

Which of the following statements about air as an example of common vehicle transmission is true? (Select all that apply)

A) air transmission of microbes can occur via droplets capable of remaining airborne for some period of time
B) microbes suspended in droplet nuclei are very large and therefore do not easily enter the lungs
C) microbes carried in the air are quite contagious because they can travel for more than 1 meter
D) serving as human reservoirs, infected individuals can spread contagious microbes like tuberculosis and whooping cough via droplets in the air