Final answer:
The Capetians generally produced competent rulers for generations due to their adoption of the primogeniture system where the eldest son inherited the entirety of the estate. OptionB.
Step-by-step explanation:
The statement that the Capetians produced competent sons for generations is mostly true. The Capetians, a dynasty which followed the Merovingians and Carolingians in France, implemented a system of primogeniture.
Instead of equally dividing the inheritance amongst all sons which often led to conflicts and dilution of power for previous dynasties, primogeniture entailed that the eldest son would inherit all of his father's estate, ensuring better stability and maintenance of power.
However, the effectiveness of a ruler is not only determined by the inheritance system but also by individual competence and circumstances encountered throughout his rule.
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