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Which mechanism causes increasing perihelion precession of Mercury?

A)Spacetime curvature due to solar mass
B)Gravitational influence from unidentified planet
C)Relativistic effects on orbital velocity
D)Non-spherical distribution of the Sun's mass

💡 Explanation

Spacetime curvature near massive objects causes geodesic paths to deviate; thus, gravity warps spacetime around the Sun, causing Mercury's orbit to precess via *gravitational lensing*. Therefore, curvature explains anomalous precession, rather than Newtonian gravity failing, or the exclusion of other solar system influences.

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