Answer:
Correct answer is an organization of Cajun dancers .
Step-by-step explanation:
First option is not correct because this doesn't mean that all the customers or all the workers are of the same ethnicity.
Second option also, German recipes can be used by anyone. It doesn't matter which ethnicity they are.
Third option is correct. Cajuns are an ethnic group in Louisiana. Only they are gathering in this organization, therefore this is the correct answer.
D is not correct, as English teachers are spread in every country, and they are not all English.