Answer:
the students have been informed they will receive something, but NOT which it is
Explanation:
Based on the information provided within the question it can be said that by signing the informed consent to participate form they have proof that the students have been informed they will receive something, but NOT which it is. Whether it is the actual medical treatment or the placebo, they will not know which it is, only the researchers will have access to that information.
This really depends on your beliefs in if gender discrimination is as big of a deal as racial discrimination. The 14th amendment is the Equal Protection Clause, it was mainly for the slaves that had been freed in the U.S after the civil war. It basically forbids the states to restrict basic rights of citizens without going through the process of law or being protected by the law. But has recently been used in cases to of gender discrimination.
I believe it is perfectly justified for the 14th amendment to be acted in cases of gender discrimination. The 14th amendment does not have to be dedicated completely to race, but can have multiple purposes and be dedicated to gender discrimination as well. Because the 14th amendment does not mention race in its context, but mentions that basic rights shall not be stripped from citizens.
Professor plum is showing the detached style of listening. This type of listener are intellectually not present in a conversation although they are present physically. In the situation described clearly the professor was not listening to what Roberto was saying.