Context: He seems like he \'s mentally impaired somehow . As I \' m going through the spiel , asking him what size what bread what sandwich what cheese , my coworker ( we \'ll call her Smash ) mouths to me , " HE \'S SO DRUNK ! " Ahh , that \'s what it was .
Question: Why does the person come off as mentally impaired ?
Option 0: They are mentally impaired .
Option 1: They are high on something .
Option 2: They drank too much
Option 3: They have a low IQ .
Answer: 2