What is the subject matter of the story "Exhalation"? Apex

A. Analyzing social interactions.

B. The relationship between humans and robots.

C. The nature of the soul.

D. Dispelling the mystery of memory.

It would be D ...

The correct answer is option D. "Dispelling the mystery of memory".

Explanation:

The science fiction short story "Exhalation" by Ted Chiang, sets its plot around a race of air-driven mechanical beings and a scientist that discovers that when the air pressure goes to an equilibrium, the computation and time that these race knows will disappear. The fact that these mechanical beings realize that they are mortal and time can eventually stops, is a metaphor of how mysterious memory could be, because it can change over time and eventually disappear.