What Is Meant by Absolute Advantage

What is meant by absolute advantage?

A) To produce a unit of goods as efficiently as any other country
B) To produce a unit of goods more efficiently using more labour than another country
C) To produce a unit of goods less efficiently using more labour than another country
D) To produce a unit of goods inefficiently using less labour than another country
E) To produce a unit of goods more efficiently using less labour than another country