Which of the following represents a reasonable rationale for the concurrent use of lidocaine and bupivacaine in oral surgery cases?

A) Rapid onset of lidocaine and long duration of bupivacaine
B) Ease of diffusion of lidocaine and low potency of bupivacaine
C) Slow onset of lidocaine and high potency of bupivacaine
D) Rapid onset of lidocaine prevents the high toxicity risk of bupivacaine

A