Find the odd one out from the given alternatives.

Correct — D.
Rule: three are planets, one is a star.

Saturn, Venus and Jupiter are planets: they orbit the Sun and shine by reflected sunlight.

The Sun is a star. It makes its own light by nuclear fusion in its core → option (d).

Why the others are wrong

• (a)
  Saturn — Saturn is a planet, a gas giant and the sixth from the Sun. It groups with Venus and Jupiter as a body that orbits the Sun.
• (b)
  Venus — Venus is the one rocky planet of the four, and that is the trap. The broader split is planet against star, and Venus stays with the planets.
• (c)
  Jupiter — Jupiter is the largest planet in the solar system, but still a planet. It orbits the Sun and does not make its own light.

Odd-one-out items reward the broadest category that sets one word apart. Here it is planet or star.

A star produces its own energy by nuclear fusion. A planet orbits a star and is seen by the light it reflects.

The Sun is the star at the centre of the solar system. Saturn, Venus and Jupiter are among its eight planets.

Key facts

• The Sun is a star, powered by nuclear fusion in its core.
• The solar system has eight planets.
• Venus is a rocky planet, while Jupiter and Saturn are gas giants.

Common traps

• Picking Venus as the lone rocky planet when the wider split, star against planet, isolates the Sun

No directly related past PYQ was found.