Your question was What is a sample treated like other experimental groups except no variable is used. The answer is, it's the Control.
In German [ section in which you've posted ], it's translation [ meaning in English ] would be: "<span>Kleine Kartoffel"
Meaning. - "</span><span>something insignificant or unimportant."
Hope this helps!</span>
Answer:
sorry can you translate this please so I can help you.
Answer: C
Explanation: She said that she has two really good friends that go to the movies with her.