When measuring AC (Alternating Current) with a multimeter, it is important to maintain the proper polarity. A. True B. FALSE C. Mem386.sys D. Ramdrive.sys E. None of the above

The correct answer is A.

When measuring AC (Alternating Current) with a multimeter, it is important to maintain the proper polarity. This is because AC current reverses its direction of flow periodically, and if the multimeter is not connected with the correct polarity, the reading will be incorrect.

The other options are incorrect. Option B is false, as it is important to maintain the proper polarity when measuring AC current. Option C is the name of a system file in Windows, and option D is the name of a file used to create a RAM disk. Option E is the only option that is not a valid answer to the question.