The correct answer is large open area.
A. operating in tandem
B. lengthy contract
C. shipping canal
D. large open area
The correct answer is (D) A large open area; an open space where crowds may gather. Also, a gathering of people; a throng; an assemblage.
Concourse comes from Middle English concours, Latin concurrere (to run together).
Examples of use:
- They met on the north side of the main concourse of the shopping mall.
- A concourse of people welcomed the arriving morning train