Which of the following statements is correct in regard to the rules that Bhikkhus had to follow?

A- Inscriptions found on the railings and pillars of stupas record donations made for building and decorating them.
B- The ivory workers financed part of one of the gateways at Sanchi.

Both statements are correct.

The railings and pillars of stupas bear inscriptions that document the contributions made for the construction and embellishment of these sacred structures. Generous donations were recorded from various sources, including kings like the Satavahanas, and guilds, such as the ivory workers' guild, which funded a portion of one of the gateways at Sanchi.