Final answer:
Nathan's resistance to Ira's new activities can manifest in several ways; through control measures such as forbidding outings, following her, confronting her, or alternatively, showing trust. This resembles John's behavior in 'The Yellow Wallpaper,' where he uses isolation as means of control.
Step-by-step explanation:
In the context of the question, Nathan's ongoing resistance to Ira's new activities could be demonstrated by a range of actions he might take to express his displeasure or attempt to control the situation.
Possible behaviors include forbidding her from going out, secretly following her, angrily confronting her, or continuing to trust her despite reservations. Each option represents a different tactic that reflects his comfort level or lack thereof with the changes in Ira's routines.
If we consider a similar scenario described in literature, for example, John's treatment of his wife in The Yellow Wallpaper by Charlotte Perkins Gilman, we see the display of control through isolation and limiting her activities.
John controls what she does, who she sees, what she reads, where she goes, and justifies this behavior as necessary due to her illness. This is a form of resistance similar to what Nathan might exhibit toward Ira's new activities, under the guise of acting in her best interest.