Passage Summary: Most people think Caravaggio is a Baroque artist, but Mather says Baroque art must be grand and extravagant. If Caravaggio's work doesn't fit Mather's description, then you can't believe both the experts and Mather.

Conclusion: We must either stop calling Caravaggio a Baroque painter or stop using Mather's definition of Baroque.

Reasoning: Most experts classify Caravaggio as Baroque based on his use of light and realism, but Mather's definition requires opulence, heroic sweep, and extravagance.

Analysis: For this Sufficient Assumption question, we need to find the missing link that forces the 'either/or' conclusion. The argument assumes that Caravaggio's work does not possess the qualities Mather requires. If we assume that Caravaggio’s realism and use of light do *not* constitute opulence, heroic sweep, or extravagance, then the conflict between the majority view and Mather's definition becomes inevitable. Look for an answer that explicitly states Caravaggio's work lacks the traits mentioned in Mather's definition.