A lot of the time apposition gives additional information about something like John, (The elevator worker) works at the hotel or Tiffany attends vista (a middle school in the valley).
Answer: The type of context clue in the sentence that helps explaining the meaning of the word "psychologist" is C. appositive.
Explanation: An appositive is a noun or a noun phrase that renames another noun that is found right before or after it. In that way, an appositive helps defining and providing additional information about a noun. In the sentence provided,<u> "scientists who study the human mind" is an appositive</u> since it has been separated from the rest of the elements in the sentence with dashes and <u>it is helping to explain the meaning of the noun found right before it: "psychologist".</u> Therefore, in this case, <u>the appositive is working as a context clue. </u>
