I'll give you a question, please answer with step-by-step reasoning process.
He leaned the beam over the flooded gap to create a makeshift what?\nOptions:\n- warehouse\n- bridge\n- metal shop\n- shop\n- new construction

bridge
Bridge is a structure making a path between two ends with a gap.

Leaning a beam over the flooded gap will create a path.

.

So, the final answer is bridge