QUICK ANSWER Which details from the text best support the inference that the conditions at Niagara Falls make maintaining bridges there very difficult?

Select the two correct answers.

A. Bridges sometimes fell after ice on the river rams their supports.

B. People had to pay to cross the bridges to Goat Island.

C. People could be fined for marching on John Roebling's bridge.

D. Strong winds and storms often damaged the bridges.