Which of the Following Should Not Be Done When Servicing

Which of the following should not be done when servicing a condenser?

A) Use a fin comb to straighten any misaligned or bent cooling fins.
B) Use a good pressure washer to remove road debris from the condenser fins.
C) Use a mild soap solution to help remove road debris from the condenser fins with a soft nylon brush.
D) Use a garden hose (low pressure) to rinse soap solution from the condenser.