C, because it did not start with inventions in the automotive indust<span>ry.</span>
Religious and ethnical problems.
It was one of the largest empires of the world with many different ethnicities. The problem was to unite people under one rule.
Another problem was communication. It was hard to transfer knowledge and news to all parts of the empire because it was too large.
Equality
One simply cannot pick just one religion that impacts this, because religion overall affects equality. For instance, gender and love. People discriminate on others for how they choose to percieve and identify themselves. They do this simply out of religion, or in most cases, they will use religion as an excuse to bash one another, simply because they just don't like it. But overall, people use religion as an excuse. This applies with sexual orientation. People tell us that god does not approve of same-sex couples, when in the bible it actually states that we mjst love one another, so this proves that they just simply don't like what they see, and thus in order to stop this, they need only remove themself from the situation, if they see a same-sex couple in public, simply walk away, or if it be on the internet, simply scroll away from the picture or page.
Changing it yeah just saying
Answer: In solution because they have dissaolved and mixed with water so they are carried down the river.
You're welcome :)