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 ?
Options:
0. They had lost their glasses , and because they could n't make out any details , they had a hard time remembering specifics
1. They had suffered a head injury and as a result had developed retrograde amnesia about the events
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
3. None of the above choices .
Answer: 2

Question: Why had the speaker lost their memory about the events of that night in Cleveland ?
Options:
0. They had suffered a head injury and as a result had developed retrograde amnesia about the events
1. None of the above choices .
2. They had lost their glasses , and because they could n't make out any details , they had a hard time remembering specifics
3. The alcohol had suppressed their ability to form memories about the events of that evening
Answer: 3