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3. Which of the following are true about repairing simple gadgets?
I. Remove the plug of the appliances out of the electrical outlet or socket.
II. Cut out the worn out part and scrape the outer covering of both ends by about half an inch.
III. Connect the two lines by twisting them together
IV. Let the twisted wires remain uncover. A. I and II only
C. I, II, III B. III and IV
D. I and IV​