In desert regions, hot ground-level air rises during the day due to convective lifting, but clouds may not form. Which of the following might explain the lack of cloud formation? Choose one or more:
A. It is too hot for adiabatic cooling to take place.
B. The air package rises too fast for condensation to occur.
C. There are too few aerosols present in the air package.
D. The air package never reaches its dewpoint.