Answer:
The correct answer is the option A: External sources.
Step-by-step explanation:
To begin with, in the field of business management when it comes to terms of sources of recruitment the extarnal sources are understood to be those who come from outside the organization and are needed to create a relationship in order to obtain good results. The external sources of recruitment are considered to be very expensive in comparison with the interanl sources and also to be more demanded of time as well. However, they also bring a great deal to the company due to the fact that increase the options available for the business to find the best of the best when it comes to potential employees.