Answer:
The vassals don't need the king, they are self sufficient, is the right answer.
Step-by-step explanation:
King Afonso ruled the kingdom of Kongo. He was the first of a lineage of Portuguese vassal rulers that continued until the early phase of the 20th century.
In the context of the feudal system that emerged in medieval Europe, a vassal is an individual considered as having a shared commitment to the ruler or lord. The mutual agreement includes military support to the ruler by these vessels in exchange for some rights. However, in the case of King Afonso, when his vessels become disobedient, he regarded the main reason for this as his vessels don't need the king, they are self-sufficient.