I will choose campaign. No money will be required to campaign and there is no risk. I earn good money by bounty. On the other hand, trading and gambling both are risky and capital required.
I also like to join signature campaign because it is not important to invest your money because the price is low to after investing we will have to hold only, but in case of joining signature campaigns we will make daily post but we will not have to spend anything, earning chances are so high as you will be paid for your knowledge without spending your money.