During a study on plant growth, researchers found that plants exposed to sunlight received better growth ratings than those that were kept in the shade. Additionally, the researchers measured the growth of two different types of plants—Type A and Type B. They discovered that all Type A plants grown in sunlight had a higher growth rating compared to all Type A plants grown in the shade. While Type B plants showed mixed results in both conditions, they did not outperform Type A plants in sunlight. From this study, it was concluded that sunlight plays a crucial role in the growth of these plants.