”….. a swift left hand …. and the right hand-delivered the punches” illustrates?

Read the passage below and answer the question.

Stella had to do her midweek shopping. There were four people before her in the queue. She watched the blond at the counter striking feverishly away at the numbers on the cold, light-flickering machine. There seemed to be a raging war between two mechanical contraptions, one, robot-like and the other stationary, but able to respond to the extent of punching, by sharp flickers of red light. It was an all-consuming battle, as a swift hand positioned the price label of the ceaseless flow of items on the conveyor belt and the right delivered the punches. The intending owners were more unnoticed onlookers. Anyway, there is a belated recognition of them in ”thank you, call again balance sheet. ” It’s all so mechanical, she thought. I mean, any creature-baboon, extraterrestrial being or anything – could as well receive the same treatment as long as the conditions are met- ”bring to the counter, labeled items from the shelves.” Where is the human touch? She wondered.

A. symbolism
B. hyperbole
C. parallelism
D. alliteration

Correct Answer:

Option C – parallelism