Many Companies Use Referrals by Current Employees as a Source

Multiple Choice

Many companies use referrals by current employees as a source for new hiring and even monetarily reward them because

A) it is less expensive than the fees paid to headhunters.
B) current employees normally are careful in recommending someone due to their personal credibility.
C) current employees are careful in their recommendations and it is less expensive than paying headhunters.
D) it is a good test of employee loyalty.