How many squares are there in the following figure?        

Correct option is D

Step-by-Step Count of Squares:

1. Smallest Squares:

• The grid has 4 smallest squares located within the central 2x2 arrangement.

2. Medium Squares (2x2):

• There are 4 medium-sized squares formed by combining four of the smallest squares each.

Total Number of Squares:

Adding all types of squares:

$$4(\text{smallest})+4(\text{medium})=8$$