Answer:
D. Other
Step-by-step explanation:
What happened in 56 BC? Well, Decimus Junius Brutus Albinus defeats the Veneti of Brittany;
-The Gauls lose most of their warships to the Romans in a sea battle at modern-day Quiberon Bay.
-The strongholds on the coast are stormed, and the population is slaughtered or sold into slavery.
I hope this helps :)