Answer:
Jill is experiencing: Removal of positively valued stimuli
Step-by-step explanation:
When a person such as Jill, experiences a lost, or goes through a very devastating situation, the effects of it generates a change in that a person's behavior as a respond of the pain and conflict . She has gone through a removal of positevly valued stimuli, in this cases people can turn their normal behavior into a descrutive, and carless one.