Addison did aerobics last night to be able to relax himslef from a long day at work. Given the context: What does Addison need to do before this? Possible answers: be watching tv all night, spend the day at home, had a bad day at work
had a bad day at work

Alex designed Robin's experiment using rigorous controls and setting up things for statistical analysis. Given the context: What does Alex need to do before this? Possible answers: pick participants without randomization, be a team player, have an understanding of statistics
have an understanding of statistics

After nagging Sasha for an hour about it, Jan finally received Sasha's payment. Given the context: How would you describe Jan? Possible answers: exhausted after nagging Sasha, demanding, relieved that he got paid
relieved that he got paid