The correct answer is A) automatically when the raft is inflated. The lights on the outside of the canopy on an inflatable liferaft are designed to activate automatically when the raft is inflated. This is a safety feature to ensure the raft is visible and can be easily located in low-light or nighttime conditions. The inflation of the raft triggers a mechanism that turns on the exterior lights, without requiring any manual intervention. The other answer choices are incorrect because the lights do not operate by a light sensor (B), a manual globe control (C), or individual switches (D). The automatic activation upon inflation is the proper design and regulation for liferaft lighting.