Read this excerpt from The Call of the Wild by Jack London. And this was the manner of dog Buck was in the fall of 1897, when the Klondike strike dragged men from all the world into the frozen North. But Buck did not read the newspapers, and he did not know that Manuel, one of the gardener's helpers, was an undesirable acquaintance. . . .

The Judge was at a meeting of the Raisin Growers' Association, and the boys were busy organizing an athletic club, on the memorable night of Manuel's treachery. No one saw him and Buck go off through the orchard on what Buck imagined was merely a stroll. And with the exception of a solitary man, no one saw them arrive at the little flag station known as College Park. This man talked with Manuel, and money chinked between them.

What does the excerpt reveal about the historical context of the story?

There is a market for stolen dogs to be used for labor in the North.
There is a prevailing distrust of the information in newspapers.
California farmers are working to change agricultural laws.
Families use expensive security systems to guard their homes.