The passage that best demonstrates the difference in class between Rosaura and Luciana in 'The Stolen Party' is when Louisa is likened to a queen who feels secure, while Rosaura feels vulnerable.
The passage that best demonstrates the difference in class between Rosaura and Luciana in 'The Stolen Party' is the following:
'Louisa, all alone by herself that night, wept a little, she hardly knew why, but the next morning, on waking, she felt like a queen who, after fearing lest her domain be wrested away from her, sees it firmly insured in her possession.'
This passage highlights the difference in social standing between Rosaura and Luciana.
Louisa, who is of a higher social class, is represented as a queen who feels secure and confident in her position.
The comparison implies that Rosaura, who is of a lower social class, feels uncertain and as if her place in society is vulnerable.