Ethan receiveda gift card and was considering three options: digitalcamera, cell phoneand video games after carefully thinking about it ethan narrowedhis decision down to the digital camera and the cell phone finally ethan chose the cell phone. in three or five sentences define opportunity cost and trade off and then explain the opportunity cost and trade off of ethans decision

In e. c. tolman's experiment, some rats were trained to run through mazes for standard food goals, while other rats were allowed to explore the mazes for 10 days without food goals or other rewards. later, when food rewards were placed in a box at the far end of the maze, the previously unrewarded rats reached the food box as quickly as the rewarded rats after only one or two trials. this experiment demonstrated that the rats had the ability to form of their surroundings.