A.) Valves, that’s the right answer
Salt is good for you in small quantities because sodium, part of salt, is required to maintain your blood pressure and is important for your neurological system. However too much can be bad for you because your body will become dehydrated as salt absorbs water.
The correct answer for this question would be C) Pineal or the third option.
Teach them how to play soccer. give them a few polite tips, but never make them feel inferior