The answer would be the Black Mamba Snake
They're commonly found in the sub-Saharan of Central Africa. Their poison consist of deadly neurotoxins that will kill the victim's neuron activity in a very short period of time
Some people get extremely mad and agitated when you are in front of you and they may persist to bully you, hit you, tease you, etc. If you are confronting a badly-tempered person they could engage into a fight against you.
Your answer is (b)
A non citizen in America is know as an alien. It's pretty offensive, but yeah. If you're living illegally in America, then your name is obviously not gonna be listed in the administration in the government, now, is it? XD<span />
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.