THE ANSWER IS D.
The domain of the Charlie's function is all<span> real numbers greater than zero</span>. The function alone would have a domain of all real numbers. In the situation given, time cannot be negative, and therefore, cannot be a part of the domain.
Ring of fire. (I am not 100% sure, double check with someone)
A southwest, to Northeast movement of air. A drop in air pressure. And warm air behind the front.
