AIIMS 2019 Botany Spore Formation Assertion Reason Question

Option D is correct because both the assertion and the reason are factually incorrect; Selaginella and Salvinia do produce spores that can be differentiated by sex, specifically in Selaginella where microspores and megaspores are produced. Other options are incorrect because they assume either assertion or reason is correct, which is not the case; thus, there is no valid explanation or relationship between the two statements. Understanding the reproductive strategies of these plants is crucial, as Selaginella exhibits heterospory, producing distinct male and female spores, while Salvinia also has differentiated spores, emphasizing the diversity in plant reproductive mechanisms.