Option D is correct : This positive charge will veer east
It is given that the particle has a positive charge.
So, the direction of the force on the positive charge (and also the acceleration) is in the same direction as the electric field.
Now the electric field is uniform and points in east, the force on it [tex]F=qE[/tex]will also be pointed towards the east.
The positive charge was initially moving north, which means that the velocity vector was in the direction of north and when a positive charge first reaches an area with an electric field and force pointing east, its velocity vector will change to be along the electric field, or east.
That’s why a positive charge traveling north enters a region where the electric field is uniform and points east will veer east.
Learn more about electric field here https://brainly.com/question/14372859
#SPJ4