Auroras do not occur on Venus mainly because it lacks a significant magnetic field, which is essential for interacting with solar wind particles. Although factors like high pressure and temperature are present, they do not cause the absence of auroras. Therefore, the correct answer is C: Lacks a magnetic field.
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Auroras do not occur on Venus primarily because it lacks a significant magnetic field, which is essential for interacting with solar wind particles. While other factors like high pressure and temperature exist, they do not directly influence the absence of auroras. The unique conditions on Venus highlight the importance of a magnetic field in the formation of auroras. ;