CompTIA A+ Core 2 Question C-47

A user calls the helpdesk and states that they are receiving an IP conflict error on their computer. The user is on a company network that uses DHCP. The technician verified the PC is using DHCP to obtain TCP/IP settings. Which of the following commands should the helpdesk technician use to resolve this issue? (Select TWO).

A. Ipconfig /renew
B. Ipconfig /registerdns
C. Ipconfig /all
D. Ipconfig /flushdns
E. Ipconfig /release