A network technician receives a call from a user in the accounting department stating that Internet connectivity has been lost after receiving a new workstation. No other users in accounting are reporting similar issues. The network technician is able to ping the machine from the accounting department`s router, but is not able to ping the machine from the IT network. Which of the following is MOST likely the cause? 

Answer options:

A. Incorrect default gateway
B. Duplicate IP address
C. Misconfigured OSPF
D. Improper VLAN assignment

A