Laura watched a public service announcement to curb smoking in which a young boy describes how his mother died from lung cancer after smoking for twenty years. in this example the unconditioned response would be

Normally, when we watch or hear any public announcements related to someone, or someone else's loved one's death, we feel saddened about it. In Laura's case as she watched an announcement about the death of a young boy's mom due to cancer, her unconditioned response would be to feel sadness regarding the death of the mother.

Ci want to say is right

They break down fat