An antonym would be "Crucial"
Her doctor believed that intellectual effort was making her ill. Women were not supposed to exert themselves much physically." was the social attitude of Gilman’s era that the excerpt best demonstrates.
The answer is option A (conceptual skills).
Explanation:
Conceptual skills are natural abilities or a talent a person may have. These skills are the ones that allow us to solve complex issues and to be creative when addressing any situation of a certain level of complexity.