Which answer matches this clue: the hard granular cheese from Emilia-Romagna aged for at least 12 months and grated over pasta?

• A Grana Padano
• B Parmigiano Reggiano ✓
• C Pecorino Romano
• D Asiago

Parmigiano Reggiano is produced only in Parma, Reggio Emilia, Modena, and parts of Bologna and Mantua under strict PDO rules.