Official Answer Key & Detailed Solution
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Correct Answer: Option (A) — Equator
Concept & Option Breakdown
Standard Reference VerifiedAt the Earth's equator, the celestial equator passes directly overhead through the zenith, and the diurnal paths of stars are perpendicular to the horizon. At the poles, stars move parallel to the horizon, and at intermediate latitudes, they rise and set at an oblique angle.
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