The best i got is a concern that whoever's mother has
There is no passage and answer choices, so it is impossible to answer this question. I apologise.
C. It tells the reader when to pause at the end of lines.
Answer:
The narrator starts to hear the heart beating while the police officers are in his home. It slowly drives him crazier and crazier, eventually confessing to the officers, thinking they know of his doings and mocking him.