The correct option is
A A- s, B- r, C- p, D- q
Ascospores produced in ascus are a characteristic feature of division Ascomycota. The budding yeasts (true yeasts) are classified in the order Saccharomycetales, within the phylum Ascomycota. An endospore is a dormant, tough, non-reproductive structure produced by a small number of bacteria. The primary function of most endospores is to ensure the survival of a bacterium through periods of environmental stress. Auxospores are the reproductive spore in diatoms that is formed by the union of two cells. Basidiospores produced in basidia are a characteristic feature of division Basidiomycota. Agaricus is a genus of Basidiomycota.
Thus, the correct answer is option A.