Write the next sentence in the following story.

How to care for landscape plants
Water the plants at night or in the early morning.
The temperature is lower during night and early morning, so less water evaporates off the ground. By taking advantage of these cooler periods, you ensure your plants get most of the water you give them.

Select from:
(a). Plants like succulents and cacti do not need too much water for healthy growth. A good rule of thumb is that each plant receives at least 7-9 hours of sunlight, but 10 minutes is generally appropriate for most average-sized plants.
(b). Do not let plants dry out in the sun or wind. Overwatering your plants can promote germination and insect infestation.
(c). For indoor garden plants, water only around 4 to 6 hours after sunrise and 2 hours before dusk. For day plants, water around 6 to 8 hours before dusk and 4 hours before dawn.
(d). However, watering a plant at midday is better than giving it no water at all. Moisten the soil at least 6 to 8 cm (2.4 to 3.1 in) deep.. The answer should be
(d).