When it's time for a new monarch, what is the most common way that the next
monarch is chosen?

An elective monarchy is a monarchy ruled by an elected monarch, in contrast to a hereditary monarchy in which the office is automatically passed down as a family inheritance. The manner of election, the nature of candidate qualifications, and the electors vary from case to case

Explanation:

An elective government is a government administered by a chosen ruler, rather than an innate government wherein the workplace is naturally passed down as a family legacy. The way of political race, the idea of applicant capabilities, and the balloters change from case to case

*automatically passed down as a family inheritance*

the answer to your question is a. the salt plains

in 1811, he led an expedition, known as the george c. sibley expedition, to improve relations with the pawnee and kansa tribes, and also to locate the rumored jefferson's salt mountain

the answer is "focused on"

lol gave an answer 1 week that's the answer for those who need it in the future xd