The goal of rent control is to:
a. the poor by assuring them an adequate supply of apartments.
b. landlords by assuring them a low vacancy rate for their apartments.
c. the poor by making housing more affordable.
d. facilitate controlled economic experiments in urban areas.

If i’m not mistaken the answer is b

The advantage of administering personality tests on employees is that it will allow the employer to know the mindset and personality of the employee. this will allow the employer to at least have an idea as to how the employee works and how his attitude in the workplace. the disadvantage is that it may make the employee a little anxious as to whether he would meet the personality requirements of the employer and whether he would be able to retain the job or not. 

Robber, police man/ woman interrogator, detective(s), witnesses