Final answer:
Donadey's use of the phrase 'syndrome d'Algérie' refers to a collective state of national amnesia in relation to the historical trauma of Algerian colonization and decolonization.
Step-by-step explanation:
Donadey's use of the phrase 'syndrome d'Algérie' refers to option 1) A collective state of national amnesia that refuses to remember the historical trauma of Algerian colonization and decolonization.