The correct answer is B) rivalries between classes.
The other options of the question were A) defeat in the Punic Wars. C) a refusal to build a navy. D) the invasion of Muslim armies.
What was a factor in Rome transition from a republic to an empire was "rivalries between classes."
In 509 BCE, the Roman Republic had been founded, installing a representative democracy after many years of Etruscan rule. It was after Julius Caesar's death, that his nephew Augustus became the first Roman Emperor, and the Republic became a thing of the past. Many things changed but the differences and rivalries between classes remained.
The purpose of the open door policy was to give all nations equal rights when trading with china.
I believe that means it had world power. I'm not positive but I hope this helps!
Answer:
they have to be a legalized citizen of the united states
Explanation:
also if this answer helps you can I please get brainilist