Just asking for some advice regarding novel endings!

So um,I just need some advice on which ending i should give my novel.I just started on it,and i think i need to add a twist to it,but a good ending also works,so–

If you guys want a good ending,please type A with your response,and if you want a tragic ending,please type B with it,thank you!C for a neutral(there's a continuation after the neutral ending)