Context: And I did n't care about anyone and just sat down each time the pain was unbearable . Then I 'll take a pack of ice and plaster it over my ankle . After work , we were all in such a good mood that some of us headed down to Geylang to get some food . Suzie , Mei and Ana were in uniform .

Question: Why did the author likely put ice on their ankle ?
Options:
0. Because they wanted to make a plaster cast for it .
1. Because suze , Mei and ana were still in uniform .
2. Because they were in such a good mood with their friends .
3. Because they must have injured it while they were at work .
Answer: 3