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← HistoryWhich problem was addressed when early Islamic scholars refined Ptolemy's epicycle model?
A)Retrograde motion approximation improved✓
B)Stellar parallax calculation validated
C)Observational equipment weight reduction
D)Celestial sphere material strength increased
💡 Explanation
Refinement addressed approximations impacting accuracy of planetary positions, therefore the epicycle model became better at matching observed retrograde motion rather than solving parallax, weight, or changing material strength because its inaccuracies caused inaccurate celestial predictions.
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