You recieve a patient from EMS following an explosion at an industrial plant. The patient has deep partial-thickness burns to his left arm, his entire chest, and entire left leg. According to the rule of 9's, which percentage of burn do you calculate?

a. 36%

b. 27%

c. 45% d. 54% 45% rationale: left arm=9%, entire chest=18%, entire left leg=18%