In a balloon model of the universe, why would it be better to represent galaxies as pins stuck in the balloon (assume it won't pop), instead of dots drawn with marker on the balloon? Group of answer choices The pins would keep the balloon from expanding too fast by causing air to leak out. The pins would stick through the surface of the balloon into the center, which is also part of the model. Galaxies are all exactly the same size, just like the pins would be. Marker dots would expand as the balloon did, and galaxies are not expanding