Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Epinephrine should not be added to ropivacaine, to increase its duration of action
Reason (R) : All the local anesthetics cause vasoconstriction upon local administration, except ropivacaine and levobupivacaine
In light of the above statements, choose the most appropriate answer from the options given below.