Fact 1: Most ecosystems get energy from sunlight. Fact 2: An ecosystem includes the organisms and their habitat. Given the two facts above, what gets energy from sunlight?

OPT: a). organisms and their habitat; b). Earth orbiting the Sun; c). Microscopic organisms; d). peachleaf willow; e). caves; f). density; g). objects that have mass; h). ocean floor;
Answer:
a).