The Strait of Magellan is located in South America. It is a navigable sea route in southern Chile, separating mainland South America to the north and Tierra del Fuego to the south. Here's a detailed explanation of why the correct answer is option 'C':

Location:
- The Strait of Magellan is situated in the southern part of South America, specifically in Chile.
- It is named after the Portuguese explorer Ferdinand Magellan, who discovered the strait in 1520 during his circumnavigation of the globe.

Geography:
- The strait is located between the mainland of South America and the island of Tierra del Fuego.
- It is a natural passage connecting the Atlantic and Pacific Oceans.
- The strait is approximately 570 kilometers long and varies in width from 2 to 32 kilometers.

Importance:
- The Strait of Magellan is an important and historic shipping route.
- It provides an alternative route for ships traveling between the Atlantic and Pacific Oceans.
- The strait offers a shorter and more sheltered passage compared to the treacherous waters around Cape Horn, which is located to the south.

Navigation:
- Navigating the Strait of Magellan requires careful attention due to its narrow and winding nature.
- It is often subject to strong winds, tidal currents, and fog, making it challenging for ships to navigate.
- However, the strait is regularly used by commercial vessels, particularly those traveling between the east and west coasts of South America.

Wildlife and Geography:
- The area surrounding the Strait of Magellan is known for its stunning natural beauty and rich wildlife.
- The strait is surrounded by diverse ecosystems, including fjords, forests, and mountains.
- It is home to a variety of marine life, including dolphins, seals, penguins, and whales, making it a popular destination for wildlife enthusiasts.

In conclusion, the Strait of Magellan is located in South America, specifically in southern Chile. It is an important shipping route and a remarkable natural wonder known for its challenging navigation and abundant wildlife.