2. Which sentence does not contain any punctuation errors?
A.
I will always remember the words he spoke then "The duties of citizens to the state are no less and perhaps greater than the duties of the state to citizens."
B.
I will always remember the words he spoke then: "The duties of citizens to the state are no less and perhaps greater than the duties of the state to citizens."
C.
I will always remember the words he spoke then; "The duties of citizens to the state are no less and perhaps greater than the duties of the state to citizens."
D.
I will always remember the words he spoke then—"The duties of citizens to the state are no less and perhaps greater than the duties of the state to citizens."