The correct answer option is 2, Trachea. Cockroaches have a specialized system of tubes called trachea that they use for respiration. These tracheal tubes deliver oxygen directly to the cells in the cockroach`s body. However, cockroaches do not have gills like aquatic organisms, which means they are not adapted to extract oxygen from water. Instead, they rely on the tracheal system to take in oxygen from the air. If a cockroach were to be submerged in water, the tracheal tubes would not be able to extract oxygen from the water, leading to suffocation. Therefore, cockroaches cannot survive in water due to their reliance on the tracheal respiratory system.