Which of the Following Is NOT True of Local Anesthetics

Which of the following is NOT true of local anesthetics?

A) They are used to supply anesthesia to only a specific area of the body.
B) The onset of most local anesthetics is slow, and they last for prolonged periods of time.
C) They may have epinephrine added to prolong their action and produce vasoconstriction.
D) They generally end in "-caine."
E) They come in several strengths, usually expressed in percents, and careful reading of the label is very important.