Which 1961 album by Manos Hatzidakis, featuring songs like 'To Fengari Ine Kokkino' and 'Hartino to Fengaraki', established the genre of entechno laiko?

• A Ta Paralogia
• B Mythologia
• C Roda Ine Kai Gyrizei
• D The Ballad of Mauthausen ✓

Manos Hatzidakis's 'The Ballad of Mauthausen' (1961), based on Iakovos Kambanellis's poems about the Holocaust, was one of the first concept albums to bring high art and folk traditions together in Greek music.