Final answer:
The correct answer is option C. Surface features of both planets have changed over time. D. Both planets have the same surface temperature.
Step-by-step explanation:
The statement that is true about Earth and Mars is C. Surface features of both planets have changed over time.
Earth and Mars have undergone significant changes to their surface features over time. On Earth, weathering by water has shaped the landscape, creating features like mountains, valleys, and river systems. Similarly, on Mars, evidence suggests that there were once seas of liquid water and weathering processes that shaped the planet's surface, although the water has mostly disappeared.