Direct applicants and referrals:

Question $1$ options:

A$)$

are more expensive to recruit because of necessary background checks.

B$)$

require more effort to get them $$sold$$ on the organization than for most other types of applicants.

C$)$

tend to have, due to self$-$selection, a better understanding of the job requirements and their ability to fulfill them.

D$)$

tend to be much more diverse when compared with candidates from other sources.