6786. The king’s palace was really a magnificent one.

✅ The correct answer is option B.
Popular : liked or admired by many people or by a particular person or group.

Splendid : magnificent; very impressive.

Decorative : serving to make something look more attractive; ornamental.

Illuminated : light up.

Magnificent : extremely beautiful, elaborate, or impressive.

Synonym of Magnificent is Splendid