Correct Answer: Zodiac

Solution : The correct choice is the second option .

The zodiac refers to the imaginary belt in the sky through which the sun, moon, and planets appear to move. It is commonly used in astrology and represents the apparent path of the sun and other planets.

The meanings of the other words are as follows:

• Horoscope is a forecast of a person's future, typically based on the positions of celestial bodies at the time of their birth.
• Platitude is a remark or statement, often with moral content, that's overused and lacking in originality. It's dull or commonplace.
• A planetarium is a theatre or building with a domed ceiling that projects a representation of the night sky onto the inner surface of the dome.

Therefore, the right answer is zodiac .