Which scenario supports the james‑lange theory of emotion?

a.
tony approaches his friend juanita, who is walking her dog. as the dog begins to bark, tony’s heart races; he thinks about why this is the case, and realizes he has a crush on juanita.
b.
bethany feels very depressed about her recent breakup with her boyfriend. she slumps down on her couch and cries for an hour straight, and then she begins to feel better.
c.
micah wakes up feeling glum. he forces himself to smile from ear-to-ear and laugh out loud, and then he begins to feel happy.
d.
aaron relaxes in his hammock. suddenly, he feels an earthquake, causing him to feel afraid; at the same time, his heart beats rapidly and his palms sweat.