Select among the following figures, The one that has an area of 12 square units.


□ = 1 square unit

1. 
2. 
3. 
4. 
5. 

The correct answer is: (1), (4), (5) 

In this question we have to count total number of squares.
If the total number of squares are then the option is correct otherwise wrong.
In option (1) the total number of squares are  so this is correct option.
In option (2) the total number of squares are  so this is not correct option.
In option (3) the total number of squares are  so this is correct option
In option (4) the total number of squares are  so this is correct option.
In option (5) the total number of squares are  so this is correct option.
So, the correct options are (1),(4),(5).