Answer:
The correct option is 1.
Explanation:
In figure 1, both the lines are coincident. It means all the points lie on the line are solutions of the system.
It means the system has many solutions and the systems share the same solution set.
In figure 2, both the line are parallel and two parallel lines never intersect each other. If the system of equations represent two parallel line, then the system of equal has no solution.
Therefore the second system represent no solution.
In figure 3, both the line intersect each other at one point. It means the system of equations has no solution.
Therefore the third system represent one solution.
Therefore the correct option is 1.