INLAND ONLY At night, which lights are required on barges moored in group formation at a bank of a river?

A
A white light placed at the corners farthest from the bank on each of the upstream and downstream ends of the group.
B
A white light placed at the corners farthest from the bank of each barge in the group.
C
A flashing yellow light placed at each of the upstream and downstream ends of the group.
D
Two red lights in a vertical line placed at the corners farthest from the bank on each of the upstream and downstream ends of the group.
E