salary and f&o audit

Hi,

I have salary income of rs.4.5 lacs+capital gain/loss and my future and option loss 3.4 lacs in last year on turnover of rs.36 lacs..so I have 3 queries regarding this

1) Which ITR should I file.?
2) whether tax audit is applicable?
3)If i don't want to carry in losses then it will Create any issue later?