Final answer:
(D) An encyclopedia article about Frida Kahlo is the most likely source of the passage, as it provides a broad overview of her life and work, characteristic of what one would find in an encyclopedia.
Step-by-step explanation:
The passage provided gives a detailed account of Frida Kahlo's life, including biographical facts, her start in painting, her injuries from her bus accident, her political affiliations, and mentions of her art exhibitions.
Considering the comprehensive nature of the information, which covers various aspects of her life and work rather than focusing solely on her political beliefs or a specific art movement, the best answer would be D- An encyclopedia article about Kahlo.
Encyclopedias aim to provide general knowledge about a subject, rather than the focused content that would be found in a museum exhibit, newspaper article about a specific event, or a book dedicated to a particular art genre.