Both the Arraignment and the Initial Appearance Require the Accused

Both the arraignment and the initial appearance require the accused to appear in court, and in both cases, the accused will be advised of their rights.How are these two formal proceedings different?

A) Bail is set in the arraignment, not the initial appearance.
B) The accused is less likely to have legal representation at the arraignment, but usually has an attorney at the initial appearance.
C) The initial appearance happens before the accused is formally charged; the arraignment happens after formal charges are filed.
D) Judges can only dismiss the case for a lack of probable cause at an arraignment.