The solar mass of the Sun is 1. The orbital period of Jupiter is 11.9 Earth years.

For an object orbiting the Sun, Kepler’s third law gives P² = a³ when P is measured in Earth years and a in AU. With Jupiter’s period P = 11.9 years, a = (11.9²)^(1/3) ≈ 5.2 AU. So the correct choice is 5.2 AU.

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