B is the best answer to the question
1. The engineers made pontoons so that they could easily cross rivers.
2. They dug beneath the enemy's city walls to weaken them.
3. Used battering rams to hammered the enemy city's gates.
Answer:
The statement from this passage could be used as evidence to suggest that the Columbian Exchange benefited the Old World much more than the New World is letter B. Practically all of them will get into a page or two or ten about the decimation of American Indians, or a page about how important maize is when all European crops fail, and things like that.
Answer: elastic clause
Explanation: The quote mentioned “possible changes of things” meaning that they’re laws that can change depending on the situation hence the term elastic.
