glass 6
If you're going to give a serious answer, it's #3. The tube to 6 is blocked.glass 6
7.glass 6
damn, you got me. I noticed the tubes exiting the glasses were blocked, but didn't notice the inlet being blocked.If you're going to give a serious answer, it's #3. The tube to 6 is blocked.
The tube to 7 is blocked, too.