Answer:
The correct answer is:
English immersion, referred to as a "sink-or-swim" approach.
Explanation:
The most common method used nowadays is "sink-or-swim" approach, due to the fact that it has a high effectiveness and really good results when acquiring a second language. This approach consists in creating an environment where students feel all the time like in a pool, all surrounded by water, in this case all the time surrounded and in contact with the foreign language. This fact, causes students to develop and feel the necessity to start communicating in the second language every time in a more proper and advanced way.
A. References to the speakers personal life.
The fourth alternative is correct (D).
All descriptions are correct and must be followed to compile a list of references. First, check out what owner will say about it. Second, ask permission and third, if allowed, thank, as a good rule of education. Meeting these requirements you will have no copyright issues.