Recruiting(招募)the right candidate to fill a vacancy can be a difficult and costly task. 【31】 the wrong person could be an expensive mistake which could cause personnel problems for the whole department. And, as every HR (Human Resource) manager knows, it is much more difficult to get rid of someone than it is to 【32】 them. The HR manager’’s first decision is 【33】 to recruit internal applicants or advertise the vacancy outside the company. 【34】 applicants are easy to recruit by memo, e-mail, or newsletter. Furthermore, they are easy to assess and know the company well. 【35】 , they rarely bring fresh ideas to a position. Moreover, a rejected internal candidate might become unhappy and leave the company. Recruiting outside the company means either advertising the vacancy directly or 【36】 an employment agency. If the company decides to advertise the vacancy directly, it has to decide where to place the 【37】 . Traditionally this has meant newspapers and professional journals but now the Internet is also very popular. The decision normally depends on the vacancy. Companies advertise blue-collar or clerical jobs in local newspapers and senior management 【38】 in national papers or professional journals, 【39】 the Internet is one of the best ways of advertising IT vacancies or recruiting abroad. However, with the Internet there is a risk 【40】 receiving unsuitable applications from all over the world.

A．whether
B．if
C．which
D．where