The given figure is made up of line segments joined together to form an enclosed surface.
In the figure, we can see that:
Fully - filled squares = 24
Half - filled squares = 16
Area enclosed by this figure = area covered by fully - filled squares + area covered by half - filled squares = 24 sq units +
= 24 sq units + 8 sq units = 32 sq units
Therefore, option (a) is correct.