Ruben, the owner of Fitstem, a popular gym, analyzes the competition that the gym faces and understands the changing needs of its customers. To tackle competition, he tries to get all the latest equipment installed in the gym. He also takes frequent feedback related to service improvement from the gym$\text{'}$s regular clients. In this scenario, which of the followings skills is Ruben most likely to possess?

a$.$ Planning skills

b$.$ Technical skills

c$.$ Human skills

d$.$ Conceptual skills