Kit Carson served as John C Fremonts guide
The pace of development is not equal everywhere because capital investment is not equal everywhere. Without capital investment there can be no development.
The answer to the question above is option A: DETRIMENT. In law, legal detriment means the sacrifice, or in other words, the injury or damage that is experienced by the promisee because of the giving up of the privileges to practice a legal right in exchange for that promise from the promisor.
I believe the answer is: A) an uncompromising belief that they were the superior race
By adopting the belief that they are superior, they feel that they have the right to kill and execute members of different cultures like animals. This also make them feel that they are the most suitable rulers for the world, which they use to justify their actions when they invade neighbouring countries.