I am b.com hons. In finance. Currently i am doing m.com. for m.com what should i choose in my 2nd yr i.e finance,marketing,hr or in banking

I have scored 92% in 12th, 81 in b.com.i am b.com hons in finance from bhu varanasi. currently doing m.com from bhu for m.com which subject should i choose for specialisation. I have finance,marketing,banking,hr and accountancy as options.plz tell me which one has more brighter future prospect?