Answer:
C. the impact of drought, especially in California
Step-by-step explanation:
A general-to-specific organization for a presentation is a structure where the presenter starts by discussing a broad topic, and then gradually narrows the focus to more specific details.
Of the options provided, the best topic for a general-to-specific presentation would be "the impact of drought, especially in California." This topic is broad enough to allow the presenter to start by discussing the general topic of drought, and then narrow the focus to the specific impact that drought has had in California. This structure would allow the presenter to build up to the most important and relevant information, and help the audience understand the context and significance of the specific details.