Final answer:
The question is asking about the value placed on the dukes in the division of the kingdom. The options provided are related to the level of value assigned to the dukes.
Step-by-step explanation:
The subject of this question is not explicitly mentioned, but it appears to be referring to a textual analysis or interpretation. The question is asking about the value placed on the dukes in the division of the kingdom. The options provided are related to the level of value assigned to the dukes. By stating that it does not appear which duke is valued most, it suggests that the value placed on the dukes may not be based on their power.
One possible interpretation of the question could be that all the dukes are valued equally (option c). Another interpretation could be that no duke is valued (option b). However, without further context or textual evidence, it is difficult to determine the correct answer definitively.
Therefore, the subject of this question is likely English, as it involves interpreting and analyzing the meaning of a text.