I believe the answer would be C.
They are classified base on the viral surface proteins.
Wait what? what do you mean i think that you forgot a part of your question
Answer:
The correct order would be:
Sun, producer, herbivore, and consumer.
The sun is the start for the flow of energy through the ecosystem. Producers such as plants continue that flow and provide energy for other organisms. Herbivores such as impala will then eat the plants to gain energy, then consumers such as leopards will eat the impala to gain energy. Hope that helps. :)
The continents are constantly moving and spreading apart which is causing the to crash together and them constantly moving is causing the sea floor to spread