The best option that conveys how Louisa May Alcott's authorial purpose and her thoughts differed from most people of her time is D by comparing Alcott to typical women of her day.
By contrasting Alcott with the prevailing norms and expectations of women in her society, the text can effectively illustrate her unique perspectives and the challenges she faced. This comparison highlights her individuality and progressive ideas, which set her apart from many of her contemporaries.