. Prior to the Industrial Revolution, someone who lived in the city of Pittsburgh would be least likely to communicate with on a regular basis. A parent at their daughter's school a member of the same church a cousin almost seventy miles away a sibling who lived a few blocks away

a cousin almost seventy miles away

Explanation:

Industrial revolution is the process of transforming or changing into a modern process where technology takes over from agrarian. It started in Britain and had spread over to other part of the world.

Prior to industrial revolution, there was no technology or modern way of communication which includes the use of phones and internet technology hence, a cousin who lives several miles away cannot be reached except when visited. The case has changed over the years as people can reach out to individual living thousand of miles away due to industrial revolution.

answer; i believe the correct answer is prefrontal cortex;