I need help with #3, please. :)

Answer:im not completly sure but i think the answer could be either china or the us.
Explanation:
most likely the us because while china has the most population size it only gorws at 0.6% while the us is 1.0%. Meaning to say the us would eventually catch up.
I hope this helped even a little. If its wring i am very sorry. If its correct can please have brainliest?