Concept:Termites swarm at night as a survival strategy to avoid daytime predators.Explanation:Termites usually come out in large numbers at night because their natural enemies, such as day-flying birds, are inactive or absent during this period.This helps the winged termites mate and establish new colonies without being easily caught.Attracting at night also reduces exposure to other daytime predators like ants and lizards.Therefore, the best reason for night swarming is to avoid birds that hunt during the day.Answer:B. They avoid day-flying birds