Answer:
The correct answer is letter "D": all employees .
Step-by-step explanation:
Boundary-spanning activities refer to the activities by which employees of a company gather valuable information about events related to the role they play in the company but that happen outside of the organization. Usually, strategies and methods being implemented by competitors are information of interest collected from employees.
Because of the highly-competitive market we like in, firms motivate all their workers to obtain as much external information as possible to be ahead or keep the pace of competitors.