Why is dr. norman borlaug often called “the man who saved a billion lives”? a. dr. borlaug’s work significantly increased agricultural yields in mexico and india. b. dr. borlaug’s work focused on making money rather than on feeding the population. c. dr. borlaug’s work is attributed to a modern world population that has exceeded six billion. d. dr. borlaug’s work to eliminate small farms and improve mechanization on a large scale.