Whose is the detective following Jimmy

Which of the narrator's statements in "the yellow wallpaper" suggests that she does not think women are too frail to be intellectual? a. i verily believe she thinks it is the writing which made me sick! b. of course i didn't do a thing. jennie sees to everything now. c. i don't feel as if it was worth while to turn my hand over for anything, and i'm getting dreadfully fretful and querulous. d. so i walk a little in the garden or down that lovely lane, sit on the porch under the roses, and lie down up here a good deal.