Final answer:
Contagious diffusion in cultural geography is best exemplified by the rapid spread of a new form of music across the world through efforts of influencers.
Step-by-step explanation:
The scenario that best exemplifies contagious diffusion in cultural geography is option A) The rapid spread of a new form of music across the world through efforts of influencers. Contagious diffusion refers to the spread of a cultural trait or innovation from one person or place to another by direct contact or proximity. In this scenario, the music spreads rapidly across the world through the influence and promotion of key influencers, reaching a wide audience and gaining popularity quickly.
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