Question

The Celts were skilled A) Sailors B) Cabinetmakers C) Metalworkers

Answer 1

C) metal workers 
proof:The name 'Iron Age' comes from the discovery of a new metal called iron. ... Before the Iron Age the only metal used in Britain to make tools was bronze, which is an alloy of copper and tin (hence the Bronze Age). Where did the Celts come from? The Celts lived across most of Europe during the Iron Age.

Answer 2

The celts were actually skilled C.) Metalworkers