After the Year 1600, the Human Population Began to Grow

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