What inference can be made based on the data presented in the chart?

Explanation

Option A suggests population control efforts in developing nations, which is not directly supported by the chart. Option B claims infant mortality is worse in Africa than Asia, which may not be clearly indicated. Option C correctly identifies that countries with lower birthrates generally have higher per capita income, as shown by the data. Option D states that birthrate is influenced by various factors, which is true but not the primary conclusion from the chart.