What is most likely the author’s point in including the following metaphor (paragraph 10) in "a vindication of the rights of women? " woman who has only been taught to , will soon find that her charms are oblique sun-beams, and that they cannot have much effect on her husband’s heart when they are seen every day, when the summer is past and a) to suggest that keeping some distance is the key to a happy marriage b) to relate the idea of affection to something temporary, like the seasons c) to compare women to the sun, in that they both give life d) to suggest that all marriages will ultimately end in unhappiness