The two statements best illustrating the central ideas are the ones that begin with "The gluten-free lifestyle..." and "Eating gluten has...". (options C and D)
Whenever we write or speak, we have a most important message that we wish to convey to our audience. That message is what we call a central idea. It is possible, however, for a text or speech to contain more than just one central idea.
In the text we are analyzing here, called "The Case of Modern Wheat," two central ideas are that:
With the information above in mind, we can select options C and D as the correct answers for this question.
The complete text can be found attached.
Learn more about central ideas here:
https://brainly.com/question/17610102