I want to know the answer to the following question:
Who was given the right to appoint shugo?
All the background I'm provided with is that "Initially, their responsibility was restricted to arresting rebels and collecting needed army provisions, and they were forbidden from interfering with Kokushi Governors, but their responsibility gradually expanded and thus the samurai-class appeared as the political ruling power in Japan.". Is that enough to answer the question?
Answer: no