Answer:

c) The following are the most critical safety precautions that should be followed at all times:

i)  Making use of high-quality cables

ii) The use of proper earthing is also important.

iii) The use of electric appliances only in a dry environment is recommended.

d) The mains must be turned off promptly whenever somebody comes into contact with a live wire, in order to prevent the supply of electricity from being interrupted.