To determine which figure represents a dilation that increases the size of the original object, you would typically look for the figure that has been enlarged compared to its original size.
Since I cannot see the image, I can't directly identify which figure is the dilation. However, generally, a dilation will show the same shape but at a larger scale. If you compare the illustrations for each figure (gemstone, tree, lamp, car), look for the one that appears to have a larger size while maintaining the same proportions.
If one of the figures appears larger than the others while still being a recognizable version of the same object, that would be the correct answer. If you have any further details about the sizes or characteristics of these figures, feel free to share, and I can help you analyze it!