Concept:Indoor decorative plants must survive the weak light conditions typical of enclosed living rooms.
Explanation:Living rooms usually receive filtered or low-intensity sunlight through windows.
Direct bright sunlight is often blocked by curtains, roofs, or nearby buildings.
Therefore, plants used for decoration in such rooms must tolerate these dim conditions.
Plants that can endure low light intensity can continue to photosynthesize and remain healthy indoors.
This ability is the main factor that makes them suitable for living-room decoration.
Options such as low respiration rate, ability to retain water, or low disease resistance do not directly relate to surviving poor indoor lighting.
Hence, the key feature is the capacity to withstand low light intensity.
Answer:A. ability to endure low light intensity