The option C the boat was nearing a dangerous part of the river is true, that's why this was a bad idea at that moment.
The Niagara Falls is a natural waterfall at the border of US and Canada. It is a geological wonder and called as one of the most famous waterfalls of the world.
The Niagara Falls is 167 ft deep, so it was a bad idea to go there by a boat as the reference given in the chapter "where is Niagara Falls".
Hence, option C is true because the boat was near a dangerous part of the river.
Learn more about Niagara Falls here,
https://brainly.com/question/14114381
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