Question: What is the main argument presented in the passage about the benefits of a plant-based diet?

Options:

1. A plant-based diet is the only way to achieve good health.
2. Plant-based diets are environmentally sustainable and health-promoting.
3. Plant-based diets are too restrictive for most people.
4. Plant-based diets do not provide enough protein.

Correct Answer: Plant-based diets are environmentally sustainable and health-promoting.

Solution:

The passage argues that adopting a plant-based diet can lead to better health outcomes and is more sustainable for the environment.