in general, if you have to choose between 2 options in quests, the one at the top advances the quest, the one at the bottom cancels the dialogue...
the cutlivation quests have only one effect, upon completing one quest, your cultivation level (is it called esteem? haven't been ingame for quite a while) is upgraded - means you can use new skills - which ones you want to level is for you to decide.
afaik the only time where it makes a difference depending on what you choose is the lvl89 (?) cultiquest where you decide if you want to go heaven or hell. there are posts in this and official forums with differences for each class.