What should I do, Marketing, HR, Finance?

Hi, I am 24 M pursuing my MBA and I am at a point where I have to choose my future field of work, I have done engineering and I had done 2 different jobs, one was related to my engineering background as a Graduate Engineer Trainee in a manufacturing plant and also prior to joining this organization I had also been a part of startup where I worked as a BDE(Sales).

Now, I am confused as to what should I do, I have interest in marketing and also in HR as I'm a people person but my relatives have been advising me to choose Finance because of the higher package and better growth opportunities. I'm not good at Finance but I'm ready to learn if that's what it takes.

What should I do?