An astronaut standing on the surface of the Moon observes the sky during daytime. What color does the sky appear to the astronaut, and what is the scientific reason behind this observation?

Options:

• A: Blue, because the solar wind scatters high-frequency light.
• B: Red, because the lunar dust scatters longer wavelengths of light.
• C: Black, because the Moon lacks an atmosphere to cause Rayleigh scattering of sunlight.
• D: White, because all wavelengths of light are scattered equally by the lunar surface.

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