Read the following context and answer the question.
Context: He took out a screwdriver and gave one of the buttons at the back of the central remote a half - twist . He sprayed lubricant on the coils . And , oh yeah , replaced the wall unit 's shattered panel ( Now THAT I could prove was broken . ) .
Question: Why did he spray lubricant on the coils ?
Answer:


None of the above choices .