Who Said This?

Who said this? "...the sovereign has only three duties to attend to....first,the duty of protecting the society from violence and invasion ... ;secondly,the duty of protecting ...every member of the society from the injustice or oppression of every other member of it all;and thirdly,the duty of erecting and maintaining certain public works and public institutions,which it can never be for the interest of any individual ...to erect and maintain..."

A) Adam Smith
B) John Stuart Mill
C) Sir William Petty
D) Franklin Roosevelt
E) Thomas Jefferson