According to the authors, there are four common abuses that historically are described as giving rise to vulnerability. which response below contains the correct four

physical control ,coercion ,undue influence ,manipulation

Explanation:

Vulnerability is described by (NBAC) as subjects who have difficulty providing voluntary, informed consent arising from limitations on decision-making capacities, or situational circumstances or because they are at risk of exploitation.

These vulnerable groups such as pregnant women, children, individuals with physical or mental disabilities, prisoners, elders among others might need special treatment, protection or considerations.  

answer; belief perseverance;

answer; quantitative versus qualitative research;