Which organism is least likely to become a fossil a snail or dandelion or squirrel and why?

A dandelion is least likely to become a fossil compared to a snail or a squirrel. This is because dandelions are soft-bodied plants with delicate structures that decompose quickly and lack hard parts like shells or bones necessary for fossilization. In contrast, snails have hard shells, and squirrels have bones that can be preserved over time, making them more likely to become fossils.