An engineer must configure a /30 subnet between two routes. Which usable IP address and subnet mask combination meets this criteria?

Question:
An engineer must configure a /30 subnet between two routes. Which usable IP address and subnet mask combination meets this criteria?

• A. interface e0/0
  description to HQ-A370:98968
  ip address 10.2.1.3 255.255.255.252
• B. interface e0/0
  description to HQ-A370:98968
  ip address 192.168.1.1 255.255.255.248
• C. interface e0/0
  description to HQ-A370:98968
  ip address 172.16.1.4 255.255.255.248
• D. interface e0/0
  description to HQ-A370:98968
  ip address 209.165.201.2 225.255.255.252

Exam with this question: CA201