Final answer:
A cornice is the decorative overhang mentioned in the student's question, while a dado is actually the lower part of a wall, often richly decorated, such as the Ghaznavid dynasty's dado panel from the Royal Palace of Mas'ud III, which is displayed in the Brooklyn Museum.
Step-by-step explanation:
The student's question refers to a decorative element associated with architecture. The correct answer is b) Cornice, which is a rectangular, strongly framed panel that overhangs a talud. Dado, on the other hand, is a lower part of a wall that is typically decorated in various media.
The dado panel from the Courtyard of the Royal Palace of Mas'ud III serves as an exquisite example of Ghaznavid dynasty art. These panels featured Kufic inscriptions, vegetal motifs, and were often colored blue, red, and gilded. The dado panel located at the Brooklyn Museum is a representation of the larger, ornate works that adorned the palace's courtyard and reflected the Ghaznavid dynasty's artistic style.
Understanding the difference between architectural elements like cornices and dado panels helps in identifying and appreciating the nuances of historic art and architecture. The dado panel at the Brooklyn Museum offers invaluable insights into the Ghaznavid dynasty's cultural and artistic contributions to the Indian subcontinent.