It's important to know that according to Newton's First Law, if there are no external forces (unbalanced means not equal to zero), then the object will reaming is velocity constant.
We have to emphasize the velocity here because it involves magnitude (speed) and direction, that's why we can say that the object will maintain the same speed and direction if there is no present unbalanced force.
Therefore, the correct answer is the first statement because it's including velocity.