Answer:
Parallelism is used when the author describes professionals who have the basic resources for their work, but not for their own use, or for the use of their workers.
Explanation:
Parallelism occurs when an author uses a succession of phrases with similar clauses, or similar structures. This can be seen in the first three sentences of the third paragraph presented in the attached figure, where the author presents different professionals, who, although they have a certain essential resource in their work area, do not have this resource for themselves or for their employees. The use of parallelism in this text, reinforces the idea of how the author is surprised to see how this unavailability of resources is common in several different professions.
The purpose of a spinning Jenny is to increase the speed of textile productions.