Which simplification was critical for astronomers using al-Khwarizmi's algebraic method to accurately predict planetary positions?

💡 Explanation

Al-Khwarizmi developed algebraic methods, which helped astronomers model celestial motion. Treating celestial bodies as point masses enabled simplifying equations by eliminating volume and shape considerations, making planetary orbit calculations tractable. Therefore simplification D results, instead of A, B, or C which remove essential physical effects for accurate predictions.

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