According to reports-in Japanese media, many students were given koala faeces as a present prior to taking college admissions exams. The thinking behind poop's power was that koalas are known to hang on trees for more than 20 hours at a time without falling, even while sleeping, so people thought that same determination could rub off on students. Higashiyama Zoo in Nagana also got into the superstitious trend by distributing packages containing koala faeces, all of which ran out in less than 10 minutes.
The phrase 'all of which ran out in less than 10 minutes" show that koala faeces gifts 10 minutes' show that koala faeces gifts were
1.in great demand 2.totally unwanted 3.always available 4.almost unavoidable