<span>C. the American army</span>
This question was answered by Skrskr1717 Ambitious
papermaking, gunpowder, compass
The answer is b. continental break-up. During this time, the continents began to
form and also separate in different areas. It was also the time of mammals as
dinosaurs were now extinct, mammals began to flourish in the earth. The climate
was now cooling down during this period.
Bill gates and John D Rockefeller
Lack of political maturity & no executive power