One of the Major Problems Contributing to Warfare in Merovingian

One of the major problems contributing to warfare in Merovingian Gaul was that

A) all property was divided equally among descendants, instigating fights for power.
B) all branches of the family were entitled to form their own dynasty.
C) there was much intermarriage between clans, and property lines became blurred.
D) they were on the border with the Vandals.
E) all property went to the oldest son, instigating attempts on his life by his brothers.