(A) Sweden & Denmark
(B) Finland & Sweden
(C) Norway & Finland
(D) None of these
🧠 Explanation:
- The Gulf of Bothnia is a northern arm of the Baltic Sea located between Finland and Sweden.
- It is the northernmost part of the Baltic Sea and plays a vital role in trade and transportation for both countries.
- The gulf separates the east coast of Sweden from the west coast of Finland.
- Therefore, the correct answer is (B) Finland & Sweden.