In understanding the central idea or the main idea of a particular passage. You must take out the hard terms and look for their meanings. It is one way of understanding at the same time learning with the passage. It is also advisable to stay focus on what you are reading to easily understand it.
I think a historian has to be curious to be successful. This is simply because if a historian does not have a drive to learn more information\, they will not try. However, if they keep the child-like mindset of always needing to know, they can go far with their discoveries and studies.
I believe the answer is B. Details that the narrator states directly in the text
First conditional .
It’s used to describe things that we think are likely to happen in the future
The term "vetted" means "to make a careful examination," or "to investigate someone thoroughly." It is commonly used to ensure someone is trustworthy for a job. When Whitehurst says that the candidates have already been "extremely vetted," it is implied that the candidates were investigated to a great extent.