Task: Text Completion
Input (English): A pair of kayakers navigate on a river waterway in calm water near a waterfall. a group of kayakers <sep> (A) walk out of a bridge into the water. (B) sit in the kayaks on the shore before pushing off into the river. (C) passes over small waterfalls and dirt trail and then onto rapids and streams. (D) board with inflatable tubes in the semi dark floating down the river.
Output (English): B