Ethan received a gift card and was considering three options: digital camera, cell phone, and video games. after carefully thinking about it, ethan narrowed his decision down to the digital camera and the cell phone. finally, ethan chose the cell phone. in three to five sentences, define opportunity cost and trade-off and then explain the opportunity cost and trade-off of ethan's decision.

An opportunity cost is the next best option and a trade-off was the other options. In Ethan´s case, his opportunity cost was the digital camera because that´s what his last decision was between, the camera and the phone. His trade-off was the video games, because in his first decision between the three, he decided that the video games were not as important as a camera or a phone.

the fact that could also be added to column b is that during world war ii, specifically between the years 1941 and 1945, japan expanded its territory towards the indonesian territory in what was known later as part of the "pacific war". in that time, japan could conquer the philipines, singapore,   borneo, central java, malang, cebu, sumatra and various other islands of the area, therefore expanding its territory for a brief period of time.

on the morning of  july 21,  1861, general mcdowell ordered the  unionarmy to attack. it was on this hill that  confederate  colonel thomas jackson and his forces held back theunion  troops.