What was the official language of instruction in schools before the 1976 reform that adopted Demotic Greek?

• A Koine Greek
• B Attic Greek
• C Polytonic Greek
• D Katharevousa ✓

Katharevousa, a purified, archaic form of Greek, was the official language of education and state from the 19th century until 1976 when Demotic Greek was adopted for all levels of education.