medium · SAT Reading & Writing

For decades, it was assumed that the ancient monument served as a celestial observatory, with its stones aligned to capture the sunrise on the summer solstice. Recent excavations, however, have uncovered burial pits and ritual artifacts within the perimeter that suggest a primarily funerary function. The original assumption, though widely cited, may have been _______. Which choice completes the text with the most logical and precise word or phrase?

1. Indispensable
2. Premature
3. Meticulous
4. Incontrovertible

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