Which Is a Valid Justification for Air Conditioning

Multiple Choice

Which is a valid justification for air conditioning?

A) Buildings packed to capacity with people, computer workstations and artificial lighting usually need air conditioning in the UK
B) The future habitability of planet Earth is assured whatever we may do to its natural resources
C) The pattern of energy use for the next 100 years of a building's use has nothing to do with its designers
D) Building designers must ignore those few days in the year when hot humid weather makes indoor conditions uncomfortable without mechanical cooling systems
E) Correct design of glazing in commercial buildings for the UK always eliminates the need for air conditioning