Which country has not had success at greatly reducing its population growth over the past few decades? 

A)  Thailand 
B)  India 
C)  China 
D)  Iran

Population Growth

The growth of a population as the number of its individuals rises over a period.

Thailand

A country in Southeast Asia known for its tropical beaches, opulent royal palaces, ancient ruins, and ornate temples displaying figures of Buddha.

India

A country in South Asia, known for its diverse cultures, languages, and history, the world's largest democracy and second most populous country.