Answer:
D. Informed Consent to Research
Explanation:
informed consent to research is a voluntary agreement to participate in a study. the subject must be made aware of the research in details and must consent to it before the start of the research.
in this case, Professor Hammond did not notify the students or seek their consent before the start of the study. However, due to the nature of the study, if the students are aware it may affect the results. thus it is adviceable to notify their guardians for consent.
More than 7 million Chileans live in the Santiago metropolitan region. So the ratio is 1:3.
<h3>Who are Chileans?</h3>
Chileans are those who have a connection to Chile, whether it is by residence, constitutional, history, cultural, or spiritual ties.
Although Chile is a bilingual and multicultural country, the vast majority of Chileans use Spanish as their first language.
They are either Catholics or have a Christian cultural heritage.
Thus, the population of Chileans in Santiago is 7 million and the ratio is 1:3.
Learn more about Chileans, here:
brainly.com/question/7827216
