Read this passage. I recall watching the fields and pastures outside my window slowly transform into roads, factories, and high-rises as our train rumbled east. My inaugural train trip to New York City sparked a curiosity about rail travel that blossomed even as the industry declined. What feature distinguishes this passage as an introduction? It adds credibility to the author. It offers researched facts about the topic. It is written by an expert on the book’s subject. It provides a high-interest "hook."

It provides a high-interest "hook".

Explanation:

"Hook" can be defined as an eye grabber in any writing. In literary terms, just like a "hook" is used to catch a fish in fishing, a writer use the first line of the introduction to attract the attention of the readers. This is phenomenon is termed as "hook" by some. Introduction, in any form of writing, is the first thing that grabs the interest of the reader and urges them whether to read it or not.

The given passage of an introduction have a "hook". As defined above, the  introduction is an eye grabber. The passage is providing an high interest by informing the audience of the changes that has taken place in the city over the time. And the experiences of train traveling.

So, the correct answer is last option.

the answer is culture