The correct answer is hunters.
In certain habitats hunters are responsible for maintaining population numbers of certain species. Overpopulation of some animals can lead to destruction of local vegetation, death of other animals, spreading of diseases, infestations etc. To maintain equilibrium hunters will cull the numbers of certain animals periodically.
According to the four-part typology of serial killers, the Comfort <span>serial killer kills for financial or material gain.
In general, the perpetrator of comfort serial killer came from the upper class of society. They tend to be smart and careful in their way and use a discreet killing method to avoid attention and suspicion from authority (such as using poison)</span>
The correct answer is B which is scarcity
It is most likely that their child "experiences difficulty in adapting to the demands of independent adult life".
Intellectual disability refers to the phenomenon where there are limits found in a person's either intellectual capabilities or he is having issues in adaptive behavior which include many everyday social skills.
The main reason would be the environment because of the fact their population is so big, they need enough room for everyone. There's also the connection with having available food source within the environment when the people plan to settle in. There's also the idea of desirable climate which helps them with food sources and allows them to flourish instead of dying off.