Final answer:
The label D shows the location of Peloponnesus on the map. Peloponnesus is a peninsula located in southern Greece.
Step-by-step explanation:
Peloponnesus is a peninsula situated in southern Greece. It is separated from the mainland by the Corinthian Gulf. The peninsula holds great historical significance as it was home to several ancient city-states, including Sparta and Corinth.
Peloponnesus is known for its rich history, culture, and archaeological sites. It has played a significant role in ancient Greek civilization and is renowned for its strategic location and natural beauty.