Answer: Hyperbole
Step-by-step explanation:
The type of literary device in this passage is hyperbole. A hyperbole refers to an exaggerated statements. It's an overstatement whereby a particular condition is being exaggerated for emphasis.
Here, the statement that people moved slowly then because there was nowhere to go, nothing to buy and no money to buy it with, nothing to see outside the boundaries of Maycomb County is an exaggerated statement
This isn't possible as people will have places to go to and there'll be things to see outside Maycomb county.