What waterway was a vital trade route for the British during imperialism?

Suez Canal

Explanation:

The Suez Canal is a man-made waterway connecting the Mediterranean Sea to the Indian Ocean via the Red Sea. It enables a more direct route for shipping between Europe and Asia, effectively allowing for passage from the North Atlantic to the Indian Ocean without having to circumnavigate the African continent.

Basically allowed for faster travel without circumnavigating.

the answer is true sir