Step 1: Understanding the Big Trunk Route.
The Big Trunk Route refers to one of the busiest and most significant sea routes in the world, which connects Europe and North America across the North Atlantic Ocean.
Step 2: Analyzing the options.
(A) Suez Canal: Incorrect. The Suez Canal connects the Mediterranean Sea with the Red Sea.
(B) Panama Canal: Incorrect. The Panama Canal connects the Atlantic and Pacific Oceans through Central America.
(C) Northern Atlantic Sea Route: Correct. The Big Trunk Route is another name for the North Atlantic Sea Route, which carries a major portion of the world’s trade between Europe and North America.
(D) None of these: Incorrect. The correct association is with the Northern Atlantic Sea Route.
Step 3: Conclusion.
Therefore, the Big Trunk Route is associated with the Northern Atlantic Sea Route.