Why Did Mormon Leaders Advocate a Move to the Great

Why did Mormon leaders advocate a move to the Great Salt Lake?

A) It appeared that no other group wanted to settle there.
B) Brigham Young had read advertisements about land there in various journals, and it appeared that those already there were fairly liberal.
C) The area was technically Mexican property and the U.S. government had no jurisdiction there.
D) The Mexican government had entered into a treaty that stated the Mormons would be left strictly alone.
E) The angel Moroni had shown Brigham Young the route that must be followed.