Answer:
The correct answer is c. Data center access. The data center access layer provides Layer 2/Layer 3 physical port density for servers in the data center12. The access layer connects the servers to the network and operates in Layer 2 or Layer 3 modes1. The access layer switches are typically top-of-rack (TOR) switches that deliver data packets to end-user devices2. The other layers do not provide this function. The data center core layer provides high-speed packet switching between multiple aggregation modules3, the data center aggregation layer provides advanced application and security services3, and the data center distribution layer is not a part of the three-tier network model2. You can learn more about the data center architecture from the web search results I found for you31425.
Step-by-step explanation: