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 .

Based on the preceding passage, choose your answer for question What may have been the reason they slept in late ?
Options are:
[1]. They stayed up late catching up with each other the night before ..
[2]. The narrator could not read the time on the clock because he needed an eye exam and glasses ..
[3]. The narrator was nervous about his eye exam the net day ..
[4]. None of the above choices ..
The answer is:
[1].