Which example below best demonstrates state-dependent learning

Which example below best demonstrates state-dependent learning? a. Last night, at the grocery store, Cole ran into a psychology professor he took a class with three semesters ago. He recognized her right away. b. Even though Walt hasn’t been to the beach cottage his parents owned since he was a child, he still has many fond memories of time spent there as a family. c. Although Emily doesn’t very often think about her first love, Steve, she can’t help getting caught up in happy memories when “their song” (the first song they danced to) plays on the radio. d. Alexis always suffers test anxiety in her classes. To combat this, she tries to relax when she studies. She thinks it’s best to study while lying in bed, reading by candlelight with soft music playing