Which answer matches this clue: the far-left terrorist group that kidnapped and murdered former prime minister Aldo Moro in 1978?

• A Prima Linea
• B Brigate Rosse ✓
• C Nuclei Armati Proletari
• D Ordine Nuovo

The Red Brigades operated from 1970 to 1988; the Moro kidnapping, during which he was held for 55 days before being killed, shocked the nation.