Answer:
A good argumentative speech could be what's better; cats or dogs. It's a basic question but you could do actually research seeing which animal makes people happier, which one is cheaper, etc. But really anything as long as you are backed up by good information.
I hope this helped! Not 100% if that's what you were asking
The answer is synonym-antonym
Answer:
It means that, the son has reached the lowest point of his existence.