Which of the Following Is an Example of E-Leadership

Which of the following is an example of e-leadership?

A) The sales manager of a company , on a business trip to Mumbai, chats with his team members through web conferencing.
B) The sales manager of a company, currently working in the company headquarters, assigns the deputy sales manager to take charge in his absence.
C) The trainer of an organization is assigned to personally monitor and coach a new batch of trainees.
D) The human resource executive of an organization is assigned to conduct exit interviews in person.