Answer:
D. phototropism
Explanation:
Phototropism is a growth that occurs in response to light. This is an important capacity of the plant, as light is needed for essential processes performed by the plant, such as photosynthesis and flowering. In phototropism, plants have a tendency to grow toward the light, to escape from the overgrowth and to get as much light as they can. This can easily be observed in tropical forests. Rainforests contain dense trees that allow less sunlight to penetrate. In response to this, some plants due to phototropism have the ability to grow above normal to evade shading and achieve higher light intensity, so these plants grow to a height of more than 45 to 55 meters above usual tree height in tropical forests.
