Step 1: Script.
The rock edicts of Aśoka were inscribed mainly in Brahmi script. In some regions, Kharoshthi was also used.
Step 2: Language.
The language of most edicts was Prakrit, easily understood by the masses.
Step 3: Elimination.
- Devanāgarī script: Came much later, not used in Aśoka’s time.
- Roman script: Foreign to India, not used.
Step 4: Conclusion.
Thus, the correct statements are (A) and (B).