Scientists discover new viruses capable of infecting humans every year. Many of these viruses are emerging viruses. What affect does modern transportation have on emerging viruses?
A.
Modern transportation has no affect on emerging viruses.
B.
Modern transportation increases the rate at which emerging viruses are spread.
C.
Modern transportation releases large amounts of CO2 into the atmosphere, which kills emerging viruses.
D.
Modern transportation allows people to escape infection by emerging viruses.