Both statements are inaccurate in their assertions about cloud behavior. High clouds, such as cirrus clouds, do not primarily cool the Earth's surface; instead, they can trap infrared radiation, contributing to a greenhouse effect and resulting in warming. Low clouds, while they do absorb some infrared radiation and contribute to warming, predominantly reflect solar radiation, which can have a net cooling effect during the day. Therefore, the correct answer is that neither statement accurately describes the complex interactions of clouds with solar and infrared radiation in Earth's atmosphere.