D, I think so! Hope it helps you!
Answer:
Saudi Arabia is governed as a monarchy and as a unitary state.
Approved July 2, 1890, The Sherman Anti-Trust Act was the first Federal act that outlawed monopolistic business practices. The Sherman Antitrust Act of 1890 was the first measure passed by the U.S. Congress to prohibit trusts. ... Several states had passed similar laws, but they were limited to intrastate businesses.
The best reason as to why the caliphs demonstrated religious tolerance to Jews and Christians would be because "D. the caliphs knew freedom of worship led to an overall stronger empire," since allowing people to worship freely meant that they were less likely to rebel against the state.
