I'm sorry this question is to complex you need to make it smaller for other people to do it for you. hope this Helps
Answer: A, from what I know you normally don’t put anything before or after nevertheless
(Also did you mean to put commas because I’m pretty sure those are commas not semicolons)
2. Problems in society.
4. Problems in the way of betterment.
According to the Scientific Method, in order to make a controlled experiment you NEED to have an hypothesis.
A controlled experiment consists of a test done by a scientist in which only one or a few variables are changed while the others remain constant in order to prove or disprove a hypothesis. This hypothesis is key to said experiment because it provides the starting point from which the professional can begin the procedure, as it helps focus on the subject that one is trying to get results from. Without a clear hypothesis, the outcome of the experimentation will not be valid nor specific.
This is the correct way to say it.
