Answer:
option 1
Explanation:
If a relationship is proportional it will cross the origin (0,0) and it will be a straight line. 
By looking at the graph, we can identify that this is a straight line. 
And there is a point over the origin (0,0) 
So we can say that this graph is proportional because the line intersects with the origin. 
(the axis being numbered correctly does not identify whether a relationship is proportional so we rule out the second answer)