In a constant air volume system with perimeter heating which of the following elements are fluids in the air handling unit?
i) Heating coils
ii) Cooling coils
iii) An air mixing section
iv) Filters
v) A humidifier
vi) A dehumidifier
a) i, ii, iii, and iv
b) i, ii, v, and vi
c) ii, iii, iv, and v
d) i, iii, and v
e) iii only
Answer: C