7. Which of the following is the best example of treacherous behavior?
a. helping someone recover
b. betraying someone's trust
c. challenging someone's statement
d. accepting punishment for someone

That which is the best example of treacherous behavior is: b. betraying someone's trust.

A treacherous behavior is an attitude that is deceitful. A treacherous person is cunning and not straightforward in his ways.

When a person betrays the trust of his fellow, he has engaged in treacherous behavior and this will make it difficult for others to trust him.

So, option B is an example of treacherous behavior.

Learn more about treachery here:

link

b. betraying someone's trust

Explanation:

the question concerns exactly this part of the speech:

i am not now thinking of the loss of property involved, immense and serious as that is, but only of the wanton and wholesale destruction of the lives of non-combatants, men, women, and children, engaged in pursuits which have always, even in the darkest periods of modern history, been deemed innocent and legitimate. property can be paid for; the lives of the peaceful and innocent people cannot be.

president wilson talks about the lives of people destroyed by german army. but these people are not americans, they are the local people living in europe. the president mentions the barbarity of germans, considering that he is not targeting the nation, instead it is said about german army. the correct answer is the last one.