It was often more, grated it will not be an goodbye option to quit dialogue.
It was also usually more in Skyrim even if it did not have skill (perk) checks who is common for quests in Fallout.
Typical setting is an quest giver who also have more information about the issues around the quest.
And yes this dialogues also tend to branch down even if more than four options, note that if you branch you must also have an talk about something else option.
First thing who is axed is probably the ability to having them say anything again. rater you get an new option as one of the four.
This will allow them to add new options in case of the old, downside is that you better stay focused and listen.