Lamar was invited to go to the movies with his friends, but he also had a civics project to complete. Lamar chose to complete his civics project.
What is Lamar's opportunity cost? *
The cost of the ticket and popcorn at the movie theater
The cost of the supplies he needed to complete his civics project
O The time he could have spent with his friends at the movies.​

I’m annoyed but glad that my history teacher left and quit her job as a teacher to become a flight attendant

One day as your professor is driving to work, another driver runs through a red light and hits his car. the professor is shaken up but survives the accident. however, the next time he starts to enter the intersection,he becomes nervous and fearful. soon,he starts going to work via another route to avoid the intersection even though this route adds twenty minutes to his commute in each direction. according to the principles of classical conditioning, why does the professor become scared of the previously harmless intersection? what can he do about this, as going via other route is very time consuming? be specific. break down the situation into its parts and show how the principles of learning apply.

Which of the following phrases best describes american society in the early 1900s