Please helppp! Easy 10 points

Technician a says that the sine with dwell (swd) test is used to determine if an electronic stability control system functions normally. technician b says that the esc lamp, called a telltale light, is required to remain on for two minutes. who is correct?

During the cold war, the united states was involved in certain regional conflicts due to fears later called the domino theory, which stated which concept?

Tension between the british and boers was caused primarily by what things?