4. Which of the following is positively correlated with gross domestic product (GDP) per capita? A. Infant mortality rate
B. Carbon dioxide emission per capita
C. Rate of natural increase
D. Rice production per capita
E. Distance from the Greenwich meridian

Answer b is the answet

Historians are researchers of the past or people who understand the history of people. with this field, they must possess qualities such as being unbiased, patient, efficient reader, has a knack for logic and critical thinking and reasoning, disciplined, open-minded, resourceful, with good analytical ability, good reasoning skills and problem solving!