What is most likely the author’s point in including the following metaphor (paragraph 10) in "A Vindication of the Rights of Women?"

...The woman who has only been taught to please, 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 gone....
Question 2 options:

A)

To suggest that all marriages will ultimately end in unhappiness


B)

To compare women to the sun, in that they both give life


C)

To relate the idea of affection to something temporary, like the seasons


D)

To suggest that keeping some distance is the key to a happy marriage