<span>AIDS treatment program start in Africa in 2002.</span>
        
                    
             
        
        
        
Answer:
 This theory is called the biosocial developmental theory of BPD.
Explanation:
The biosocial developmental theory states that a person can have borderline personality disorder due to two main factors genetic inheritance and an environment that gives the conditions to develop this disorder. If a child with a biologically sensitive temperament is not educated wel,l on how to act in different stressful situations, such as impulsivity or frustration, when this person reaches adolescence or young adulthood he or she will probably have BPD because her or his biological predispositions were boosted by the environment to develop the disorder.
 
        
             
        
        
        
Answer:
The correct answer is herd immunity
Explanation:
Herd immunity is a type of immunity provided by the major population which is vaccinated or immune against an infectious to some individual of their community which is not immune to that infection.
Herd immunity is generated only when most of the population is immune to that particular disease. For example, in measles, 90-95% of a population should be vaccinated against measles to provide herd immunity to the un-immune individuals. So the correct answer is herd immunity.
 
        
             
        
        
        
All of the above is the correct answer