Answer :
As a Latin expression, it may be determined that "quid pro quo' means D)
"this in exchange for that."
- The expression typically means exchange or substitution. This agrees with its medical records derivation.
- Since one type of medicine was usually substituted for another and explained as a "quid pro quo," it supports the substitution or exchange meaning of the expression.
- When it is not illegal or immoral, "quid pro quo" transactions are allowed in law. Finally, "quid pro quo" does not mean "which is which" or the best or worst medicine. It literally means "what for what" or "something for something."
Thus, the substitution meaning of "quid pro quo" remains valid and implies that option D. is correct.
Related link: "quid pro quo" at https://brainly.com/question/2976998