What does unscrupulous mean

In this chapter, maya describes her confusion about lesbianism. she wrongly thought that were the same as lesbians.

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.

Define the following word using the meaning of the suffix. use your dictionary if you are uncertain of the definition. argument a. full of disagreement b. act of disagreement c. state of disagreement d. quality of disagreement