Context: well last night i came clean ... i got really wasted in cleveland and do nt know how i got to the hotel that night then i had a womens number in my phone and pics i could nt explain .
Question: Why had the speaker lost their memory about the events of that night in Cleveland ?
Option 0: They had lost their glasses , and because they could n't make out any details , they had a hard time remembering specifics
Option 1: They had suffered a head injury and as a result had developed retrograde amnesia about the events
Option 2: They had a fair amount to drink , and as a result had suffered a black out in regards to the events of that evening
Option 3: None of the above choices .
Answer: 2