Answer:
As the answer above suggests, it was the main character's own guilty conscience. As we know, he is... a little mentally unstable. The heartbeat is not from the old man's corpse, it is from his own delusions and insanity from the guilt that he made for himself by murdering the old man in cold blood. Eventually, his guilt from killing the man and his fear of being caught boil over, and he confesses his crime in a dramatic breakdown.
The measure that will determine how the team members will be trained in the stations is based on the training metric.
<h3>What is a training metric?</h3>
This refers to the method adopted by a company which track an employer training skills and are often linked to specific tasks in order to complete particular duties within their role.
Hence, the measure that will determine how the team members will be trained in the stations is based on the training metric.
Read more about training metric
<em>brainly.com/question/17056633</em>
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