Multi-select problem: How does the next paragraph end?

A man in glasses speaks to the camera. A guy holding onto a rope attached to a boat water skiis. the man in the glasses

Pick from:
[a]. begins to explain the filming environment and the fish swimming under people.
[b]. is seen sitting on a board with his feet up in the water.
[c]. appears again, speaking to the camera and points to a man water skiing on the river.
[d]. is going over the water movements.
[c].