jsut search Fonts on appstore, some keyboards already have letters like: ø, ß, ç, ā
in my opinion it would be true

Unrestricted submarine warfare is a type of naval warfare in which submarines sink vessels such as freighters and tankers without warning, as opposed to attacks per prize rules (also known as "cruiser rules").
Answer:
C
Explanation:
Hamilton died from a gunshot wound by Aaron Burr in the famous 1804 duel they had. In fact, Burr suffered no remorse for killing Hamilton. Hamilton died that same day. So all the other answers are wrong.