You freeze some soup in a tight-sealing glass jar. You take it out of the freezer a few days later and let it thaw unopened on your kitchen counter. When you try to open it you notice that the lid is very tight and you hear a pop when the lid finally comes off. What is the best explanation of what caused the sound? Select answer from the options below The freezer causes a vacuum inside the jar. The frozen soup thaws and being mainly water it contracts doing so. This lowers the pressure inside. The temperature difference caused the jar to expand, thus lowering the air pressure. The extra air inside the jar, having been cooled down now expands and wants to get out. It's just the lid popping off