Which of the following is not correct with reference to the Edicts Of Ashoka?

• A.  They were engraved on rocks, on polished stone pillars mounted by capitals and in the caves.
• B.  They are found only in the Indian subcontinent.
• C.  Ashoka was the first Indian king to speak directly to the people through his inscriptions.
• D.  They throw light on the career of Asoka, his external and domestic policies, and the extent of his empire.