Correct Answer:

Solution : In the given series, the figures have two same geometrical shapes and one different shape.
Let's check the given options –
First option:

Here, there are two squares and one circle.
Second option:

Here, there are two triangles and one circle.
Third option:

Here, there is one square, one triangle, and one circle.
Fourth option:

Here, there are two circles and one square.

So, only the third option does not follow the pattern. Hence the third option is correct.