Alan, a content analyst, frequently attends seminars at his workplace. At one such seminar, a new content development position in Alan's department was announced. The management asked employees to refer friends or family members that they thought were suitable for the position. Alan referred Sam, a cousin with previous experience in content creation. After various selection processes, Sam was hired. In this scenario, which of the following recruiting methods did Alan's organization use?A) Digital recruiting. B) Job posting. C) Head hunting. D) Word-of-mouth recruiting.