Monroe Doctrine (1823) issued primarily to prevent European nations from future colonization in Latin America.
According to the context the term that adequately completes the fragment is Herd immunity.
<h3>What is herd immunity?</h3>
Herd immunity is a term to refer to a biostatistical phenomenon that originates in a population when most of it has become immune to a disease (due to previous infection or because it has been vaccinated) and the epidemiological chain is interrupted, causing an indirect form of protection against a disease by preventing unimmunized individuals from becoming infected.
According to the above, the appropriate term to complete the fragment would be herd immunity.
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One of the major conditions was serious trouble in the housing market, people started giving people home m<span>ortgages that people could not afford tp have in the first place.</span>
The correct answer here would be ego. According to the famous psychoanalyst Sigmund Freud the ego is middle part in the three part structure of the identity and it is by ego that the thinking and reasoning are controlled. Ego is created by the modification of Id as it comes into contact with world.
