Correct answer: (b) 3 1 4 2
Explanation
- A
3 1 2 4
Option A claims matching Spain-France with Pyrenees, Switzerland with Alps, Bulgaria with Apennine, and Italy with Balkan, which fails on the last two pairs.
- B
3 1 4 2
Option B matches Spain-France with the Pyrenees mountains forming their natural border, Switzerland with the extensive Alps mountain range, Bulgaria with the Balkan mountains traversing the peninsula, and Italy with the Apennine range running down its length, thereby providing the accurate and complete sequential code 3 1 4 2.
- C
2 3 1 4
Option C pairs Spain-France with Apennine and Switzerland with Pyrenees, creating immediate geographical misalignments that render the entire sequence incorrect.
- D
4 1 2 3
Option D incorrectly links Spain-France with the Balkan mountains and Italy with the Pyrenees, which contradicts established European physical geography.
Summary. Official key is (b) matching the European countries in List-I with their respective mountain systems in List-II. Spain and France are separated by the Pyrenees (3). Switzerland is prominently characterized by the Alps (1). Bulgaria encompasses the Balkan mountains (4), while Italy is defined by the Apennine range (2). This yields the exact code sequence 3 1 4 2. Candidates must carefully trace international borders and major ranges to avoid confusion.
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