Which of the following correctly represents the formula for calculating total heat loss to the ambient in a resistance model for an extended surface tree?
a) Q = (1 / (h * A)) * (T_surface - T_ambient)
b) Q = (h * A) * (T_surface - T_ambient)
c) Q = (T_surface - T_ambient) / (h * A)
d) Q = (T_surface - T_ambient) * (h * A)