A
Mediterranean Sea and the Red Sea
B
Red Sea and the Gulf of Aden
C
Persian Gulf and the Gulf of Oman
D
Caspian Sea and the Black Sea
Correct answer: (b) Red Sea and the Gulf of Aden
Explanation
Option B is correct because the Bab-el-Mandeb Strait specifically links the Red Sea to the Gulf of Aden. Options A, C, and D refer to different geographic straits like the Suez Canal, Strait of Hormuz, etc.