What is the converse of the following conditional?

If a point is in the first quadrant, then its coordinates are positive

AIf a point is in the first quadrant, then its coordinates are positive
BIf the coordinates of a point are positive, then the point is in the first quadrant
CIf the coordinates of a point are not positive, then then the point is not in the first quadrant
DIf a point is not in the first quadrant, then the coordinates of the point are not positive.