Answer:
correct option is B. Country A will grow the fastest.
Explanation:
given data
Real GDP Country A = $10,000
Real GDP Country B = $20,000
Real GDP Country C = $30,000
solution
here we can say Country A will grow the fastest
because Country A has more potential to grow due to low base
and that is results in more growth till it matures
so correct option is B. Country A will grow the fastest.