The answers are letters B and D. They are not soluble in water and the hydrogen-oxygen ratio is different. Good luck!
Answer:
Be there for them. Not necessarily tell them "don't be suicidal" But more of telling them "if you ever need someone to talk, I'm here", Or even asking them about their life could get them to open up to you about why they are feeling suicidal, you could be the person they need to open up to.
Hope this helps!
The answer would be to lie on the ground away from water.
Talking to a doctor to get prescribed medication and or talk to a therapist.