Final answer:
The question likely pertains to the area of rectangles, with each option representing different dimensions. By calculating the area, option (C) has the smallest area of 400 square inches and is the one that's 'less than' the others.
Step-by-step explanation:
The question provided seems to be incomplete as it states "less than _____" without specifying what the comparison is being made to. However, given the options provided, we can discuss the potential subject of comparison which could be the area of a rectangle, as each option reflects dimensions of a rectangle.
To compare the areas, we must calculate the area of each rectangle by multiplying the length by the width.
- For option (A), the area is 24 inches by 24 inches, which is 576 square inches.
- For option (B), the area is 24 inches by 18 inches, which is 432 square inches.
- For option (C), the area is 20 inches by 20 inches, which is 400 square inches.
Among the given options, option (C) has the smallest area, which is less than the areas of options (A) and (B).