1. Greta is the only female employee in the maintenance department of Hydraulics Inc. Greta's supervisor and co-workers tease and play tricks on her so relentlessly that she feels compelled to quit. 
2. 
   
3. This is a constructive discharge based on gender discrimination. 
4. a harassing discharge based on treatment discrimination. 
5. a voluntary discharge based on impact discrimination. 
6. not a discharge or discrimination.