How relevant is letter writing in this modern age?

In the modern age we live in today, as people, we are so quick to change our minds about something we may have said before, so if you ask me how important letter writing is in this age, I would most likely say it is essential. It is essential because it is better to write something in black and white so that if we choose to change our mind about something we've said it would be much easier and fair to both parties involved in your words.

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.

c) problem and solution