I believe B) Defensive and possibly C) Submissive behaviors
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.
Answer: B) Two-thirds of the Senate must concur.
Describing the problem is the first step in the basic structure
of a persuasive speech.
