Final answer:
The author's main goal in constructing the work is to choose an impression or effect to be conveyed.
Step-by-step explanation:
The main goal of the author in constructing the work could be 4) To choose an impression or effect to be conveyed. This means that the author purposefully selected certain impressions or effects to communicate through their work. By doing so, the author aims to evoke specific emotions or thoughts in the audience and create a particular impact.