I believe You replace the ending of the elements name with -ide. example: magnesium flourine should should be magnesium flouride.
The answer to your question big man would be E
The answer is (3) CH3COOH. CH3COOH is a acid. It can ionized in water. So the solution can conduct an electric current. And the other three can not be ionized in water.
I would think that it’s C, but try to get a second opinion as well!!
