Answer:
A) the Cannon-Bard theory.
Explanation:
Based on the information provided within the question it can be said that Stella's response pattern would support the Cannon-Bard theory. This theory basically believes that a single specific stimuli can trigger both an emotional and physical response. Which in this case is what is happening since the Stella winning the lottery is causing her heart to race (physical response) as well as giving her the feeling of euphoria (emotional response).
