The question says that the two streets Intersect at an angle of 30 degrees
and then it makes four pathways.
I have shown the scenario with the help of a diagram and attached it with answer.
So we can see that a shape is formed ABCD , which we can easily see that it is a quadrilateral .
Now as the streets intersect at 30 degrees.
So it cannot be a square .
But the sides AB , BC , CD and AD are equal , as we can see in the diagram.
Now a quadrilateral with equal sides but angle other than 90 degree , is called a RHOMBUS.
So option B , is correct , It makes a RHOMBUS