The correct answer is an objective concept.
Explanation:
I believe the answer is: c understanding constancy and change throughout the lifespan.
In social settings, developmental science research is being done by observing the change that the subjects experience if being put at a certain time of environment over time. Example of its research would be finding out whether there is a correlation between parents income with performance throughout school years.
If I had written your question in English, I could have helped you
Answer:
Karl Marx
Explanation:
Karl Marx advocated that Democracy would give way to Socialism and that Capitalism would change into Communism.
Karl Marx was a German philosopher and revolutionary socialist who published The Communist Manifesto and Das Kapital that form the basis of Marxism.
