I believe the answer is A, but Im not 100% I hope this helps!
Answer:
I'm sorry I can't understand what your question is, but I have a suggestion for you
YOU SHOULD JUST ASK YOUR QUESTIONS IN YOUR OWN COUNTRY SO THAT SOMEONE CAN ANSWER IT AND ALSO YOUR POINTS WON'T BE WASTED IF YOU DO IT :) :) :)
Answer:
We know that 20% of 400 liters is 80 liters.
so 20 is 5 divided by 100 so divided 400 by 5 and its 80
