Concept:The analogy is based on a country and its capital city.
Explanation:In the given pair, Czech is a country and Prague is its capital.
So, we must find the capital of Denmark.
The capital of Denmark is Copenhagen.
Check the other options:
Minsk is the capital of Belarus.
Canberra is the capital of Australia.
Brussels is the capital of Belgium.
Thus, Copenhagen correctly completes the analogy.
Answer:Copenhagen (Option A).