What Is the Most Important Difference Between a Fresh Sausage

What is the most important difference between a fresh sausage and a cured sausage?

A) A fresh sausage contains no nitrites or nitrates, while a cured sausage does.
B) A fresh sausage contains only uncooked meats, while a cured sausage contains cooked, cured meats.
C) A fresh sausage is soft and moist because it is not air-dried, while a cured sausage is air-dried and therefore either semidried and firm or dried and firm like a salami.
D) A fresh sausage is not smoked, while a cured sausage is smoked.