A penetration tester has been contracted to conduct a physical assessment of a site. Which of the following is the MOST plausible method of social engineering to be conducted during this engagement? 

Answer options:

A. Randomly calling customer employees and posing as a help desk technician requiring user password to resolve issues
B. Posing as a copier service technician and indicating the equipment had phoned home to alert the technician for a service call
C. Simulating an illness while at a client location for a sales call and then recovering once listening devices are installed
D. Obtaining fake government credentials and impersonating law enforcement to gain access to a company facility

A