Answer:
Step-by-step explanation:
C) For all of these reasons, Kale should be added to everyone's diet as a tasty, healthy staple food.
This is because A) isn't a conclusion sentence it'd either be in the paragraph, or not at all because it's irrelevant since it's all about Kale. For B) again it's not a conclusion sentence because it's not something you'd end you paragraph with. It'd be in the paragraph not at the end. D) wouldn't be the best option either because you're trying to convince you're readers to eat Kale. Leaving C) as you best option because it's briefly summarizing your paragraph and it's more appealing to the readers as opposed to the other options.