Answer: an idiom
Explanation:
In the sentence, "looked like a million dollars" is an idiom. An idiom is referred to as a term through which the meaning cannot be gotten literally from the words that it is made from.
An idiom is a group of words which has a meaning that's completely different from the meanings of the word on its own.
An example is saying someone has a cold feet. It doesn't mean that the feet of the person is cold but rather, it means that the perosn is nervous.
commas go where the sentence changes the subject but is still a sentence
The central idea of the article is to show that the experiments with human beings have already been done in scary ways.
C. the patient was anxious and upset.
hope this helps:)
