The answer to this question would have to be a.
I think the answer would be the third option.
Use it describing the way someone rode something. "But Tait had none of Tillotson's gentleness, and he rode roughshod over the obstacles in his way." (That sentence is from yourdictionary.com by the way :) )
This is called the "centralized" approach. It means that one person becomes in charge of more and is also more responsible for the company's actions which may or may not do the company good.
People found inner China more attractive because it had more of the modern things in that time then outer china
