The sound has an association with the noise of a running clock. This promotes the foreshadowing that the time for him to take Braling's place is approaching.
We can arrive at this answer because:
- "Marionettes, Inc." is the short story where Braling decides to buy a robot, called Braling two, to replace him in his home and his family relationships so that he has time to pursue his personal dreams.
- Braling Two is a robot identical to Braling and upon taking his place, he begins to enjoy family life and to fall in love with Braling's wife.
- As time goes by, Braling two's presence is increasingly strengthened and he wants to assume that position forever and take Braling's place.
The heartbeat and Braling Two have the same sound as a clock running and this reinforces the idea that time is passing for Braling Two to reach its goals.
More information:
https://brainly.com/question/7621591?referrer=searchResults
https://brainly.com/question/2309600?referrer=searchResults
