Read the following context and choose the best option to answer the question.
Context: Well , last night , we slept late and .... just sleep like around 1 in the morning . Anyway , when we woke up we had our breakfast and not long before , we went to the mall for my eye exam . Everything went well .
Question: What may have been the reason they slept in late ?
Options: 
- They stayed up late catching up with each other the night before .
 - The narrator could not read the time on the clock because he needed an eye exam and glasses .
 - The narrator was nervous about his eye exam the net day .
 - None of the above choices .


They stayed up late catching up with each other the night before .