After the year 1600, the human population began to grow more rapidly, owing to which of the following factors?
A. Increases in commerce and communication on a global scale
B. New agricultural developments
C. Better health care and improved hygiene
D. Increases in commerce and communication on a global scale, new agricultural developments, and better health care and improved hygiene
E. Increases in commerce and communication on a global scale and new agricultural developments
D. Increases in commerce and communication on a global scale, new agricultural developments, and better health care and improved hygiene