Answer:
a Muslim dynasty who ruled over a majority Hindu population
The correct answer to this open question is the following.
Although the question is incomplete because it does not provide a specific reference about the author of the letter or any other reference, we can comment on the following.
A primary source is the piece of information that was written by a character or an individual that lived in the moment of the event, was part of the event, or witnessed the event. This individual could have written a letter, or a document -including a book. Or he/she took a photograph. Or was part of an interview. The secondary source includes information from a third person who was not part of the time or event but has found information through other resources. It is the case of an encyclopedia or researchers/historian books.
The answer is the government creates laws that protect citizens, according to that passage that’s the answer.
Before the Roman Republic was transformed into an empire, the nation had a Senate and an executive branch with Consul's acting as leaders of the nation. Rome had an representation in place that was very advanced for an ancient civilization.