Explanation:

Search engines work by crawling hundreds of billions of pages using their own web crawlers. These web crawlers are commonly referred to as search engine bots or spiders. A search engine navigates the web by downloading web pages and following links on these pages to discover new pages that have been made available
The men left after Scout kept talking a lot to Mr. Cunningham because at the beginning, Mr. Cunningham didn't want to admit that he was Mr. Cunningham. But later, Scout kept on talking to him and then he finally admitted that he was Mr. Cunningham, and then they left. While Scout was talking to them, she said some impressive things. Like for example, why are they doing this to Tom Robinson, and then she expresses her feelings to them.
The answer to the question will be D
A human
crawls then walk then has a cane