Final answer:
In the sentence mentioned, 'adorned' means 'decorated'. It indicates that the crown was made more beautiful with the addition of diamonds and jewels, similar to historical artifacts that were enhanced with visual forms and decorations. So, the best answer is 1, decorated.
Step-by-step explanation:
The word 'adorned' in the sentence 'The gold crown was adorned with a few diamonds and other jewels' means decorated.
This is evident in historical contexts, where precious items were often enhanced in appearance by additional embellishments.
For instance, in the description of painted ivory caskets from the royal workshops, which are adorned with scenes common in Islamic art and have a medallion of Christ on the lid, the term explicitly conveys the act of adding decorative elements to beautify an object.
So, the best answer is 1, decorated.