A 65-Year-Old Patient Has Third-Degree Skin Burns Over 30% of His

A 65-year-old patient has third-degree skin burns over 30% of his body and a smoke inhalation injury. How does the combination of skin burns and smoke inhalation affect his prognosis?

A) It quadruples the mortality rate.
B) It more than triples the mortality rate.
C) It almost doubles the mortality rate.
D) There is no mortality change between having one or two problems.