Jack Is Working on a Farm,and His Employer Has Asked

Jack is working on a farm,and his employer has asked him to kill an unwanted litter of puppies that has just been born.Jack doesn't want to do it,but he knows that it is his job to follow orders.Which of the following will make Jack most likely to disobey orders

A)  hearing another employee refusing to do the job 
B)  seeing someone watching him 
C)  realizing that he isn't being very well paid 
D)  feeling sad for the dogs