Attempts Keep the Highest / 1 7. The interaction of individual choices Immediately after an ice storm brought down power lines throughout the region, hardware stores were sold out of batteries and flashlights. However, within a couple of days, special deliveries brought in extra batteries and flashlights, and everyone who wanted to buy a flashlight or batteries was able to do so. Which of the following principles of economic interaction best describes this scenario? Markets allocate goods effectively. O When markets do not achieve efficiency, government intervention can improve overall welfare. All costs are opportunity costs. There are gains from trade. Grade It Now Save & Continue Continue without saving