Yes. I believe the perception is that it was “easy” to achieve before. I believe it was Achieved by hard work, dedication and consistency.
The term RIGHT-libertarianism is used to distinguish this class of views on the nature of property and LEFT-libertarianism, a type of libertarianism that combines self-ownership with an egalitarian approach to natural resources.
An ethical concern is a problem that requires someone to choose between alternatives to label something as "right" or "wrong", hence the ethical part.
So, I assume that ethical concern, regarding research, is when you must label different sources as obtaining proper information, or if it's incorrect(?).
I'm only guessing here, sorry, but that's the best I have.
Answer:
E. careful planning necessary in scientific experiments
