Correct Option
The statement that Ashoka's stone pillars are parts of architectural structures is incorrect. Ashokan pillars were primarily standalone monuments, erected independently to disseminate imperial edicts (Dhamma) or commemorate significant events and places associated with Buddhism. They were not integrated as load-bearing or decorative elements within larger architectural complexes like temples or palaces, distinguishing them from typical structural pillars.
Incorrect Options
Option A: Ashokan pillars are indeed highly polished. Their surfaces exhibit a remarkable 'mirror-like' finish, a testament to the advanced Mauryan craftsmanship in stone carving and polishing techniques.
Option B: These pillars are monolithic, meaning each pillar, including its shaft and capital, was carved from a single, massive block of stone. This characteristic highlights the engineering prowess of the Mauryan period.
Option C: The shaft of Ashokan pillars is typically tapering in shape. It gradually narrows from the base towards the top, contributing to their aesthetic appeal and structural stability.